14. 锟斤拷锟斤拷图锟斤拷Bitblt
锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷Windows锟斤拷式锟节达拷锟斤拷图锟斤拷锟斤拷讯锟斤拷锟斤拷锟街凤拷锟斤拷之一锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷讯锟斤拷锟斤拷一锟斤拷锟斤拷式锟斤拷metafile锟斤拷锟揭斤拷锟节碉拷十锟斤拷锟斤拷锟斤拷锟桔★拷Metafile锟斤拷锟斤拷木锟斤拷嵌锟酵硷拷锟斤拷锟斤拷锟斤拷锟缴碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角斤拷图锟斤拷锟斤拷锟斤拷位锟斤拷锟斤拷图示锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟揭斤拷锟斤拷锟斤拷细锟斤拷锟斤拷锟桔ｏ拷Microsoft Windows 3.0锟斤拷锟斤拷锟斤拷一锟街筹拷为装锟斤拷锟睫关碉拷锟斤拷图锟斤拷DIB锟斤拷device-independent bitmap锟斤拷锟斤拷锟揭斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷DIB锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷GDI锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟絎indows锟叫憋拷DIB锟斤拷锟斤拷支援锟侥碉拷锟斤拷图锟斤拷锟斤拷锟较★拷锟斤拷同锟斤拷锟铰达拷锟斤拷锟侥凤拷锟斤拷锟斤拷式锟斤拷说锟斤拷锟侥ｏ拷锟斤拷锟街憋拷DIB锟斤拷锟斤拷图锟斤拷锟界被Windows支援锟斤拷图锟轿革拷式锟斤拷然锟斤拷锟斤拷锟斤拷锟矫硷拷值锟斤拷
锟斤拷锟斤拷图锟斤拷锟斤拷
锟斤拷
锟斤拷锟斤拷图锟斤拷metafile锟节碉拷锟斤拷图锟轿达拷锟斤拷锟斤拷锟斤拷锟叫讹拷占锟斤拷一席之锟截★拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷锟斤拷实锟斤拷锟斤拷母锟斤拷锟酵硷拷锟斤拷锟斤拷锟斤拷锟轿伙拷锟斤拷锟斤拷锟狡拷锟斤拷锟斤拷锟窖锻硷拷锟組etafile锟斤拷锟绞猴拷锟斤拷锟斤拷锟斤拷锟斤拷嘶锟斤拷呋锟斤拷锟斤拷锟斤拷锟斤拷锟酵硷拷瘢锟斤拷缃拷锟斤拷锟酵硷拷锟斤拷锟斤拷锟酵硷拷锟絤etafile锟斤拷锟杰达拷於硷拷锟斤拷锟斤拷锟斤拷锟轿拷锟斤拷锟斤拷锟届洞锟狡拷希锟斤拷锟斤拷叶锟斤拷锟酵拷锟斤拷锟斤拷锟斤拷锟斤拷锟絎indows应锟矫筹拷式之锟戒传锟戒。
锟斤拷锟斤拷图锟斤拷metafile锟斤拷锟斤拷锟斤拷锟斤拷锟轿辉筹拷锟酵硷拷锟斤拷锟斤拷锟斤拷图锟斤拷之锟斤拷牟锟斤拷位元映锟斤拷图锟斤拷锟斤拷锟斤拷散锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷璞革拷锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷玫芽锟斤拷锟斤拷锟斤拷锟较低筹拷锟斤拷锟斤拷锟斤拷锟斤拷锟借备锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟杰憋拷锟斤拷锟斤拷锟斤拷锟狡★拷锟斤拷锟节达拷锟斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷锟借备锟斤拷位元映锟斤拷锟借备锟斤拷锟斤拷锟斤拷锟斤拷锟窖讹拷锟绞撅拷锟斤拷锟斤拷锟接★拷锟斤拷锟斤拷锟斤拷锟斤拷锟接★拷锟斤拷锟斤拷锟斤拷锟侥★拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞斤拷锟酵硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟借备锟斤拷
锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷缺锟姐。锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟皆碉拷影锟届。锟斤拷锟斤拷锟皆的撅拷锟角讹拷锟斤拷色锟斤拷锟斤拷锟斤拷锟皆ｏ拷锟节碉拷色锟借备锟斤拷锟斤拷示锟斤拷色锟斤拷锟斤拷图锟斤拷效锟斤拷锟斤拷锟角诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷摹锟斤拷锟揭伙拷锟斤拷锟斤拷锟斤拷堑锟斤拷锟酵硷拷锟斤拷锟斤拷锟绞撅拷锟斤拷囟锟斤拷锟斤拷锟绞撅拷锟斤拷锟斤拷群锟酵硷拷锟斤拷莺锟饺★拷锟斤拷锟杰碉拷锟斤拷图锟杰憋拷锟斤拷锟斤拷锟斤拷锟叫★拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷拇锟斤拷锟酵拷锟斤拷锟斤拷锟斤拷锟斤拷苹锟缴撅拷锟酵硷拷氐锟侥承╋拷泻锟斤拷校锟斤拷锟斤拷锟斤拷锟斤拷苹锟酵硷拷锟侥达拷小锟斤拷锟斤拷metafile锟节放达拷锟斤拷小锟斤拷锟斤拷然锟杰憋拷锟斤拷图锟斤拷锟斤拷貌锟斤拷锟斤拷锟狡伙拷锟斤拷
锟斤拷锟斤拷图锟侥第讹拷锟斤拷缺锟斤拷锟斤拷锟斤拷要锟杰达拷拇锟斤拷锟秸间。锟斤拷锟界，锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷640锟斤拷480图锟截ｏ拷16色锟斤拷锟斤拷频图锟斤拷锟斤拷锟叫ｏ拷VGA锟斤拷Video Graphics Array锟斤拷萤幕锟斤拷一锟斤拷锟斤拷锟斤拷图锟斤拷要锟斤拷锟�150 KB锟侥空间；一锟斤拷1024锟斤拷768锟斤拷锟斤拷锟斤拷每锟斤拷图锟斤拷为24位元锟斤拷色锟斤拷图锟斤拷锟斤拷锟斤拷要锟斤拷锟�2 MB锟侥空间。Metafile锟斤拷要通锟斤拷锟饺碉拷锟斤拷图锟斤拷锟斤拷锟劫的空间。锟斤拷锟斤拷图锟侥达拷锟斤拷占锟斤拷锟酵硷拷锟侥达拷小锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟缴拷锟斤拷锟斤拷锟斤拷锟絤etafile锟侥达拷锟斤拷占锟斤拷锟斤拷锟酵硷拷锟侥革拷锟接程度猴拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷GDI指锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
然锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷锟絤etafile之锟斤拷锟斤拷锟斤拷俣取锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷聘锟斤拷锟窖讹拷锟绞撅拷锟酵拷锟斤拷雀锟斤拷苹锟斤拷锟酵硷拷蔚锟斤拷锟斤拷锟斤拷俣锟揭拷臁ｏ拷锟斤拷锟斤拷锟疥，压锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷压锟斤拷锟斤拷锟斤拷图锟侥碉拷锟斤拷锟斤拷小锟斤拷锟斤拷使锟斤拷锟斤拷锟斤拷效锟斤拷通锟斤拷锟界话锟竭达拷锟戒并锟姐泛锟斤拷锟斤拷锟絀nternet锟斤拷锟斤拷页锟较★拷
锟斤拷锟斤拷图锟斤拷锟斤拷源
锟斤拷
锟斤拷锟斤拷图锟斤拷锟斤拷锟街癸拷锟斤拷锟斤拷锟斤拷锟斤拷锟界，使锟斤拷Windows 98锟斤拷锟斤拷锟侥★拷小锟斤拷锟揭★拷锟斤拷式锟斤拷一些锟斤拷锟斤拷愿使锟斤拷位元映锟斤拷锟酵硷拷锟斤拷锟揭诧拷锟绞癸拷锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷濉ｏ拷锟斤拷羌俣锟斤拷锟酵硷拷锟斤拷锟斤拷锟揭伙拷锟斤拷岣达拷拥锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤。
锟斤拷锟斤拷图图锟斤拷也锟斤拷锟缴碉拷锟皆筹拷式锟斤拷锟斤拷锟斤拷锟缴★拷锟斤拷锟杰达拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷傻锟酵硷拷锟斤拷馨锟斤拷锟斤拷锟酵硷拷锟絤etafile锟斤拷锟芥，锟斤拷锟角革拷锟斤拷锟斤拷锟饺的伙拷锟斤拷锟斤拷锟斤拷锟酵硷拷锟酵拷锟斤拷锟斤拷锟斤拷锟揭拷锟斤拷锟酵硷拷锟�
锟斤拷锟节ｏ拷锟斤拷锟斤拷图通锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞碉拷锟斤拷锟斤拷图锟今，诧拷锟斤拷锟斤拷锟斤拷锟斤拷硬锟斤拷锟借备锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷实锟斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷氲斤拷锟斤拷浴锟斤拷锟斤拷锟接诧拷锟酵拷锟绞癸拷锟� 锟斤拷锟斤拷锟斤拷装锟斤拷 锟斤拷CCD锟斤拷charge-coupled device锟斤拷锟斤拷锟斤拷锟斤拷装锟矫接达拷锟斤拷锟斤拷锟斤拷头诺锟缴★拷锟斤拷时锟斤拷些CCD锟斤拷元锟斤拷锟斤拷锟叫筹拷一锟介，一锟斤拷图锟截讹拷应一锟斤拷CCD锟斤拷为锟斤拷约锟斤拷支锟斤拷只锟斤拷一锟斤拷CCD扫锟斤拷图锟斤拷
锟斤拷锟斤拷些锟斤拷锟斤拷CCD锟借备锟叫ｏ拷 扫锟斤拷锟斤拷 锟斤拷锟斤拷锟斤拷系摹锟斤拷锟斤拷锟揭伙拷锟紺CD锟斤拷锟斤拷纸锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷片锟斤拷锟侥憋拷锟斤拷扫锟借。CCD锟斤拷锟捷癸拷锟角匡拷炔锟斤拷锟斤拷锟缴★拷锟斤拷锟斤拷锟轿蛔拷锟斤拷锟斤拷锟紸DC锟斤拷Analog-to-digital converters锟斤拷锟窖碉拷锟阶拷锟轿拷锟轿谎讹拷牛锟饺伙拷锟斤拷锟斤拷谐傻锟斤拷锟酵硷拷锟�
携锟斤拷锟斤拷锟斤拷锟斤拷锟揭诧拷锟斤拷锟紺CD锟斤拷元锟斤拷锟斤拷锟斤拷捉影锟斤拷通锟斤拷锟斤拷锟斤拷些影锟斤拷锟角硷拷录锟斤拷录影锟斤拷锟较★拷锟斤拷锟斤拷锟斤拷锟斤拷些锟斤拷讯锟斤拷锟揭诧拷锟街憋拷咏锟斤拷锟� 影锟斤拷捉锟斤拷 锟斤拷frame grabber锟斤拷锟斤拷锟斤拷装锟斤拷锟杰帮拷锟斤拷锟斤拷锟窖讹拷藕锟阶拷锟轿伙拷锟酵硷拷锟街碉拷锟斤拷锟叫┯帮拷锟阶斤拷锟斤拷锟斤拷魏锟斤拷锟斤拷莸锟斤拷锟窖讹拷藕锟斤拷锟皆达拷锟斤拷锟酵笔癸拷茫锟斤拷锟斤拷锟絍CR锟斤拷锟斤拷锟斤拷锟紻VD锟斤拷锟脚伙拷锟斤拷锟斤拷锟竭碉拷锟接斤拷锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷锟轿伙拷锟斤拷锟斤拷锟侥硷拷位锟斤拷於硷拷庭使锟斤拷锟斤拷锟斤拷说锟斤拷始锟斤拷酶锟斤拷锟斤拷锟斤拷锟斤拷恕锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷位锟斤拷锟斤拷锟斤拷锟绞癸拷玫锟狡拷锟斤拷锟斤拷锟揭伙拷锟紺CD锟斤拷锟斤拷锟斤拷图锟今，诧拷锟斤拷锟斤拷ADC锟节诧拷锟斤拷锟斤拷位图锟斤拷直锟接达拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷诘募锟斤拷锟斤拷锟斤拷小锟酵拷锟斤拷锟斤拷锟轿伙拷锟斤拷锟斤拷锟斤拷锟斤拷缘慕锟斤拷锟揭拷锟斤拷锟斤拷胁锟斤拷锟�
锟斤拷锟斤拷图锟竭达拷
锟斤拷
锟斤拷锟斤拷图锟绞撅拷锟轿ｏ拷锟斤拷锟叫空硷拷叽纾硷拷锟侥高度和匡拷锟饺讹拷锟斤拷图锟斤拷为锟斤拷位锟斤拷锟斤拷锟界，锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟叫★拷牡锟斤拷锟酵硷拷锟斤拷锟斤拷锟轿�9图锟截ｏ拷锟竭讹拷为6图锟截ｏ拷锟斤拷锟竭革拷锟津单地硷拷为9锟斤拷6锟斤拷
锟斤拷
习锟斤拷锟较ｏ拷锟斤拷锟斤拷图锟斤拷锟劫记尺达拷锟斤拷锟饺革拷锟斤拷锟斤拷锟饺★拷锟斤拷锟斤拷图锟斤拷锟斤拷为9锟斤拷6锟斤拷锟斤拷54图锟截★拷锟揭斤拷锟斤拷锟斤拷使锟矫凤拷锟斤拷cx锟斤拷cy锟斤拷锟斤拷示锟斤拷锟斤拷图锟侥匡拷锟饺和高度★拷c锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷锟絚x锟斤拷cy锟斤拷锟斤拷锟斤拷x锟结（水平锟斤拷锟斤拷y锟结（锟斤拷直锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟杰革拷锟斤拷x锟斤拷y锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图锟较撅拷锟斤拷锟酵硷拷亍锟揭伙拷悖拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷诩锟斤拷锟酵硷拷锟绞憋拷锟斤拷锟斤拷锟酵硷拷锟绞硷拷图锟斤拷锟斤拷锟斤拷辖恰锟斤拷锟斤拷锟斤拷锟斤拷诖说锟斤拷锟酵硷拷锟斤拷陆堑锟酵硷拷锟斤拷锟斤拷锟斤拷锟斤拷(8, 5)锟斤拷锟斤拷为锟斤拷0锟斤拷始锟斤拷锟斤拷锟斤拷锟斤拷锟皆达拷值锟斤拷图锟斤拷目锟斤拷群透叨锟叫�1锟斤拷
锟斤拷锟斤拷图锟侥空硷拷叽锟酵拷锟揭仓革拷锟斤拷私锟斤拷锟斤拷龋锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟斤拷锟侥词★拷锟斤拷锟斤拷说锟斤拷锟角碉拷锟斤拷讯锟斤拷示锟斤拷640锟斤拷480锟侥斤拷锟斤拷锟饺ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷印锟斤拷锟斤拷锟侥斤拷锟斤拷锟斤拷只锟斤拷每英锟斤拷300锟姐。锟斤拷喜锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷薪锟斤拷锟斤拷鹊锟斤拷锟剿硷拷锟轿匡拷锟轿煌硷拷氐锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷系慕锟斤拷锟斤拷锟街革拷锟斤拷堑锟斤拷锟酵硷拷锟斤拷囟锟斤拷锟斤拷锟斤拷锟轿伙拷械锟酵硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞癸拷媒锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷时锟斤拷锟戒定锟斤拷锟斤拷锟斤拷锟接︼拷锟斤拷锟斤拷锟饺凤拷摹锟�
锟斤拷锟斤拷图锟角撅拷锟轿的ｏ拷锟斤拷锟角碉拷锟皆硷拷锟斤拷锟斤拷占锟斤拷锟斤拷锟斤拷缘摹锟酵拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷写锟斤拷锟斤拷诩锟斤拷锟斤拷锟斤拷校锟斤拷掖佣锟斤拷锟酵硷拷乜锟绞硷拷锟斤拷锟斤拷薪锟斤拷锟斤拷锟斤拷锟紻IB锟角此癸拷锟斤拷锟揭伙拷锟斤拷锟揭拷锟斤拷猓╋拷锟矫恳伙拷校锟酵硷拷囟锟斤拷锟斤拷锟斤拷锟竭碉拷图锟截匡拷始锟斤拷锟斤拷锟斤拷锟揭达拷锟芥。锟斤拷秃锟斤拷翊⒋婕革拷锟斤拷锟斤拷锟斤拷械母锟斤拷锟斤拷锟皆拷锟�
锟斤拷色锟酵碉拷锟斤拷图
锟斤拷
锟斤拷锟秸硷拷叽锟斤拷锟斤拷猓拷锟斤拷锟酵硷拷锟斤拷锟斤拷锟缴拷叽纭ｏ拷锟斤拷锟街革拷锟斤拷锟矫匡拷锟酵硷拷锟斤拷锟斤拷锟揭拷锟轿辉拷锟斤拷锟斤拷锟绞币诧拷锟轿拷锟斤拷锟酵硷拷锟� 锟斤拷色锟斤拷锟� 锟斤拷color depth锟斤拷锟斤拷 位元锟斤拷 锟斤拷bit-count锟斤拷锟斤拷 位元/图锟斤拷 锟斤拷bpp锟斤拷bits per pixel锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图锟叫碉拷每锟斤拷图锟截讹拷锟斤拷锟斤拷同锟斤拷锟斤拷锟斤拷锟斤拷色位元锟斤拷
每图锟斤拷1位元锟侥碉拷锟斤拷图锟斤拷为 锟斤拷锟斤拷 锟斤拷bilevel锟斤拷锟斤拷 锟斤拷色 锟斤拷bicolor锟斤拷锟斤拷锟斤拷 锟斤拷色 锟斤拷monochrome锟斤拷锟斤拷锟斤拷图锟斤拷每图锟截匡拷锟斤拷锟斤拷0锟斤拷1锟斤拷0锟斤拷示锟斤拷色锟斤拷1锟斤拷锟皆憋拷示锟斤拷色锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟缴拷锟揭伙拷锟酵硷拷鼐锟斤拷锟揭拷卸锟斤拷位元锟斤拷锟斤拷锟杰碉拷锟斤拷色值锟斤拷锟�2位元锟斤拷值锟斤拷锟斤拷2位元锟斤拷锟皆得碉拷4锟斤拷锟斤拷色锟斤拷锟斤拷4位元锟斤拷锟皆碉拷16锟斤拷锟斤拷色锟斤拷8位元锟缴得碉拷256锟斤拷锟斤拷色锟斤拷16位元锟缴得碉拷65,536锟斤拷锟斤拷色锟斤拷锟斤拷24位元锟缴得碉拷16,777,216锟斤拷锟斤拷色锟斤拷
锟斤拷谓锟斤拷锟缴辉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷悉锟斤拷锟斤拷色锟斤拷锟接︼拷锟侥壳帮拷锟斤拷锟斤拷锟斤拷锟酵际憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷页锟斤拷锟斤拷锟斤拷锟斤拷眩锟斤拷锟斤拷锟斤拷狻�
实锟绞碉拷锟借备
锟斤拷
锟斤拷锟斤拷图锟缴帮拷锟斤拷锟斤拷色位元锟斤拷锟斤拷锟斤拷锟洁；锟斤拷Windows锟侥凤拷展锟斤拷锟斤拷锟叫ｏ拷锟斤拷同锟侥碉拷锟斤拷图锟斤拷色锟斤拷式取锟斤拷於筹拷锟斤拷锟斤拷讯锟斤拷示锟斤拷锟侥癸拷锟杰★拷实锟斤拷锟较ｏ拷锟斤拷锟角可帮拷锟斤拷讯锟斤拷示锟斤拷锟斤拷锟藉看锟斤拷锟斤拷一锟斤拷锟睫达拷牡锟斤拷锟酵硷拷锟斤拷锟斤拷谴锟斤拷锟绞撅拷锟斤拷暇涂锟斤拷钥锟斤拷锟斤拷锟�
Windows 1.0锟斤拷锟斤拷锟斤拷锟矫碉拷锟斤拷示锟斤拷锟斤拷IBM锟侥诧拷色图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷CGA锟斤拷Color Graphics Adapter锟斤拷锟酵碉拷色图锟轿匡拷锟斤拷HGC锟斤拷Hercules Graphics Card锟斤拷锟斤拷HGC锟角碉拷色锟借备锟斤拷锟斤拷CGA也只锟斤拷锟斤拷Windows锟皆碉拷色图锟斤拷模式使锟矫★拷锟斤拷色锟斤拷锟斤拷图锟斤拷锟节伙拷锟杰筹拷锟矫ｏ拷锟斤拷锟界，锟斤拷锟斤拷锟斤拷伪锟揭伙拷锟轿拷锟缴拷锟斤拷锟斤拷锟斤拷业锟缴拷锟斤拷锟酵硷拷锟斤拷锟绞就硷拷锟斤拷锟斤拷饣癸拷锟斤拷锟斤拷锟斤拷锟酵撅拷锟�
锟斤拷锟斤拷锟斤拷强锟斤拷图锟斤拷锟斤拷示锟斤拷锟斤拷EGA锟斤拷Enhanced Graphics Adapter锟斤拷锟侥筹拷锟街ｏ拷Windows使锟斤拷锟竭匡拷始锟接达拷16色锟斤拷图锟轿★拷每锟斤拷图锟斤拷锟斤拷要4锟斤拷锟斤拷色位元锟斤拷锟斤拷实锟斤拷锟较ｏ拷EGA锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥革拷锟斤拷锟接ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷64锟斤拷锟斤拷色锟侥碉拷色锟教ｏ拷应锟矫筹拷式锟斤拷锟皆达拷锟斤拷选锟斤拷锟斤拷锟斤拷锟�16锟斤拷锟斤拷色锟斤拷锟斤拷Windows只锟斤拷锟较简单的凤拷锟斤拷使锟斤拷EGA锟斤拷锟斤拷锟斤拷EGA锟斤拷使锟矫碉拷16锟斤拷锟斤拷色锟角黑★拷锟阶★拷锟斤拷锟街伙拷色锟斤拷锟竭碉拷锟斤拷锟饺的猴拷色锟斤拷锟教猴拷锟斤拷锟斤拷锟斤拷原色锟斤拷锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷系锟斤拷锟缴拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿拷锟�16锟斤拷锟斤拷色锟斤拷Windows锟斤拷锟斤拷锟斤拷锟缴拷锟阶硷拷锟酵拷锟斤拷锟斤拷锟斤拷锟�16色锟斤拷锟斤拷图也锟斤拷锟斤拷锟斤拷Windows锟斤拷锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷锟酵际撅拷锟斤拷锟�16色锟侥碉拷锟斤拷图锟斤拷通锟斤拷锟斤拷锟津单的匡拷通图锟斤拷也锟斤拷锟斤拷锟斤拷锟斤拷16锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷
锟斤拷16色锟斤拷锟斤拷图锟叫碉拷锟斤拷色锟斤拷锟斤拷锟斤拷时锟斤拷为IRGB锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷Intensity-Red-Green-Blue锟斤拷锟斤拷锟斤拷锟斤拷实锟斤拷锟斤拷锟斤拷源锟斤拷IBM CGA锟斤拷锟斤拷模式锟斤拷锟斤拷锟绞癸拷玫锟绞拷锟斤拷锟斤拷锟缴拷锟矫匡拷锟酵硷拷锟斤拷锟斤拷玫锟�4锟斤拷IRGB锟斤拷色位元锟斤拷映锟斤拷为锟斤拷14-1锟斤拷示锟斤拷Windows十锟斤拷锟斤拷位RGB锟斤拷色锟斤拷
| 锟斤拷14-1 |
| IRGB | RGB锟斤拷色 | 锟斤拷色锟斤拷锟斤拷 |
|---|---|---|
| 0000 | 00-00-00 | 锟斤拷 |
| 0001 | 00-00-80 | 锟斤拷锟斤拷 |
| 0010 | 00-80-00 | 锟斤拷锟斤拷 |
| 0011 | 00-80-80 | 锟斤拷锟斤拷 |
| 0100 | 80-00-00 | 锟斤拷锟斤拷 |
| 0101 | 80-00-80 | 锟斤拷锟斤拷锟� |
| 0110 | 80-80-00 | 锟斤拷锟斤拷 |
| 0111 | C0-C0-C0 | 锟斤拷锟斤拷 |
| 1000 | 80-80-80 | 锟斤拷锟斤拷 |
| 1001 | 00-00-FF | 锟斤拷 |
| 1010 | 00-FF-00 | 锟斤拷 |
| 1011 | 00-FF-FF | 锟斤拷 |
| 1100 | FF-00-00 | 锟斤拷 |
| 1101 | FF-00-FF | 锟斤拷锟� |
| 1110 | FF-FF-00 | 锟斤拷 |
| 1111 | FF-FF-FF | 锟斤拷 |
EGA锟侥硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷母锟斤拷锟斤拷锟缴拷妗癸拷锟揭诧拷锟斤拷锟剿碉拷锟斤拷锟斤拷锟矫匡拷锟酵硷拷锟斤拷锟缴拷锟斤拷锟轿辉拷诩锟斤拷锟斤拷锟斤拷锟斤拷遣锟斤拷锟斤拷锟斤拷摹锟饺伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟街拷锟绞撅拷锟斤拷锟斤拷锟斤拷锟绞癸拷锟斤拷械锟斤拷锟斤拷锟轿辉拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷械暮锟缴辉拷锟斤拷锟斤拷锟揭伙拷穑鹊取锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷秃锟斤拷锟揭伙拷锟斤拷璞革拷锟斤拷锟斤拷锟斤拷裕锟斤拷锟絎indows锟斤拷式写锟斤拷锟竭诧拷锟斤拷要锟剿斤拷锟斤拷锟斤拷细锟节ｏ拷锟斤拷锟斤拷时应锟斤拷锟斤拷锟劫碉拷知锟斤拷一些锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷些锟斤拷色锟斤拷锟斤拷锟斤拷锟斤拷一些API锟斤拷锟斤拷锟叫ｏ拷锟斤拷锟斤拷GetDeviceCaps锟斤拷CreateBitmap锟斤拷
Windows 98锟斤拷Microsoft Windows NT锟斤拷要VGA锟斤拷锟斤拷锟斤拷雀锟斤拷叩锟酵硷拷慰锟斤拷锟斤拷锟斤拷锟侥壳帮拷锟斤拷系锟斤拷锟绞撅拷锟斤拷锟斤拷锟酵憋拷准锟斤拷
1987锟疥，IBM锟斤拷锟界发锟斤拷锟斤拷讯图锟斤拷锟斤拷锟叫ｏ拷Video Graphics Array锟斤拷VGA锟斤拷锟皆硷拷PS/2系锟叫的革拷锟剿碉拷锟皆★拷锟斤拷锟结供锟斤拷锟斤拷锟洁不同锟斤拷锟斤拷示模式锟斤拷锟斤拷锟斤拷玫锟酵硷拷锟侥Ｊ斤拷锟絎indows也使锟斤拷锟斤拷锟斤拷之一锟斤拷锟斤拷水平锟斤拷示640锟斤拷图锟截ｏ拷锟斤拷直锟斤拷示480锟斤拷图锟截ｏ拷锟斤拷锟斤拷16锟斤拷锟斤拷色锟斤拷要锟斤拷示256锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷锟絍GA锟斤拷锟斤拷锟叫伙拷锟斤拷320锟斤拷240锟斤拷图锟斤拷模式锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟绞猴拷Windows锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
一锟斤拷锟斤拷锟斤拷锟窖撅拷锟斤拷锟斤拷锟斤拷锟斤拷锟絍GA锟斤拷锟斤拷锟斤拷色锟斤拷锟狡ｏ拷锟斤拷为锟斤拷锟斤拷硬锟斤拷锟斤拷锟斤拷锟教很匡拷涂锟斤拷锟斤拷恕锟絊uper-VGA锟斤拷锟斤拷SVGA锟斤拷锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟窖讹拷锟斤拷锟斤拷澹拷锟斤拷锟绞�256锟斤拷锟斤拷色锟斤拷锟叫讹拷锟�640锟斤拷480锟斤拷模式锟斤拷锟斤拷锟斤拷锟斤拷锟节的憋拷准锟斤拷锟斤拷锟斤拷也锟斤拷一锟斤拷锟斤拷锟铰ｏ拷锟斤拷为锟斤拷锟斤拷锟绞碉拷锟斤拷锟斤拷械锟酵硷拷锟斤拷锟剿碉拷锟�16锟斤拷锟斤拷色锟斤拷於简单ｏ拷锟斤拷些锟斤拷锟绞合★拷
锟斤拷示256锟斤拷锟斤拷色锟斤拷锟斤拷示锟斤拷模式锟斤拷锟斤拷每图锟斤拷8位元锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷些8位元值锟斤拷锟斤拷锟斤拷锟斤拷实锟绞碉拷锟斤拷色锟斤拷锟斤拷锟斤拷锟绞碉拷希锟斤拷锟绞撅拷锟斤拷峁╋拷恕锟斤拷锟缴拷潭锟斤拷毡锟斤拷锟絧alette lookup table锟斤拷锟斤拷锟斤拷锟矫憋拷锟斤拷锟斤拷锟斤拷锟斤拷指锟斤拷锟斤拷8位元锟斤拷锟斤拷色值锟斤拷锟皆憋拷锟斤拷实锟斤拷锟斤拷色锟斤拷锟斤拷稀锟斤拷锟絎indows锟叫ｏ拷应锟矫筹拷式锟斤拷锟斤拷直锟接达拷取锟斤拷色锟教讹拷锟秸憋拷锟斤拷实锟斤拷锟较ｏ拷Windows锟斤拷锟斤拷锟斤拷256锟斤拷锟斤拷色锟叫碉拷20锟街ｏ拷锟斤拷应锟矫筹拷式锟斤拷锟斤拷通锟斤拷锟斤拷Windows锟斤拷色锟教癸拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆讹拷锟斤拷锟斤拷锟�236锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷锟叫╋拷锟斤拷荩锟斤拷医锟斤拷诘锟绞拷锟斤拷锟斤拷锟较革拷锟斤拷堋锟斤拷锟缴拷坦锟斤拷锟斤拷锟斤拷锟斤拷锟接︼拷贸锟绞斤拷锟�256色锟斤拷示锟斤拷锟斤拷锟斤拷示实锟绞碉拷锟斤拷图锟斤拷Windows锟斤拷锟斤拷锟斤拷锟�20锟斤拷锟斤拷色锟斤拷锟�14-2锟斤拷示锟斤拷
| 锟斤拷14-2 |
| IRGB | RGB锟斤拷色 | 锟斤拷色锟斤拷锟斤拷 |
|---|---|---|
| 00000000 | 00-00-00 | 锟斤拷 |
| 00000001 | 80-00-00 | 锟斤拷锟斤拷 |
| 00000010 | 00-80-00 | 锟斤拷锟斤拷 |
| 00000011 | 80-80-00 | 锟斤拷锟斤拷 |
| 00000100 | 00-00-80 | 锟斤拷锟斤拷 |
| 00000101 | 80-00-80 | 锟斤拷锟斤拷锟� |
| 00000110 | 00-80-80 | 锟斤拷锟斤拷 |
| 00000111 | C0-C0-C0 | 锟斤拷锟斤拷 |
| 00001000 | C0-DC-C0 | 锟斤拷元锟斤拷 |
| 00001001 | A6-CA-F0 | 锟斤拷锟斤拷 |
| 11110110 | FF-FB-F0 | 锟斤拷锟� |
| 11110111 | A0-A0-A4 | 锟斤拷锟皆伙拷 |
| 11111000 | 80-80-80 | 锟斤拷锟斤拷 |
| 11111001 | FF-00-00 | 锟斤拷 |
| 11111010 | 00-FF-00 | 锟斤拷 |
| 11111011 | FF-FF-00 | 锟斤拷 |
| 11111100 | 00-00-FF | 锟斤拷 |
| 11111101 | FF-00-FF | 锟斤拷锟� |
| 11111110 | 00-FF-FF | 锟斤拷 |
| 11111111 | FF-FF-FF | 锟斤拷 |
锟斤拷锟斤拷锟斤拷辏琓rue-Color锟斤拷示锟斤拷锟斤拷锟秸遍，锟斤拷锟斤拷锟斤拷每图锟斤拷使锟斤拷16位元锟斤拷24位元锟斤拷锟斤拷时每图锟斤拷锟斤拷然锟斤拷锟斤拷16位元锟斤拷锟斤拷锟斤拷锟斤拷1位元锟斤拷锟矫ｏ拷锟斤拷锟斤拷锟斤拷15位元锟斤拷要锟斤拷锟斤拷於红、锟教猴拷锟斤拷锟斤拷锟斤拷锟斤拷锟届、锟教猴拷锟斤拷每锟街讹拷锟斤拷32色锟阶ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷涂锟斤拷源锏�32,768锟斤拷锟斤拷色锟斤拷锟斤拷锟秸憋拷锟斤拷牵锟�6位元锟斤拷锟斤拷锟缴拷锟斤拷锟斤拷锟皆达拷锟斤拷色锟斤拷锟斤拷锟叫ｏ拷锟斤拷锟斤拷锟斤拷锟酵可得碉拷65,536锟斤拷锟斤拷色锟斤拷锟斤拷於非硷拷锟斤拷锟皆碉拷PC使锟斤拷锟斤拷锟斤拷说锟斤拷锟斤拷锟角诧拷锟斤拷喜锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷32,768锟斤拷65,536之锟斤拷锟斤拷锟斤拷郑锟斤拷锟斤拷通锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷讯锟斤拷示锟斤拷锟斤拷为Hi-Color锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷锟结供锟斤拷锟斤拷千锟狡碉拷锟斤拷色锟斤拷
锟斤拷锟斤拷每锟斤拷图锟斤拷24位元时锟斤拷锟斤拷锟斤拷锟杰癸拷锟斤拷锟斤拷16,777,216锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷True Color锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟缴拷锟斤拷锟矫匡拷锟酵硷拷锟绞癸拷锟�3位元锟介。锟斤拷锟斤拷锟斤拷锟侥憋拷准锟斤拷锟斤拷锟狡ｏ拷锟斤拷为锟斤拷锟斤拷锟铰达拷锟斤拷锟斤拷锟斤拷锟斤拷泄俚募锟斤拷薅锟斤拷锟揭诧拷芊锟斤拷恪�
锟节猴拷锟斤拷GetDeviceCaps时锟斤拷锟轿硷拷锟斤拷锟斤拷锟铰碉拷DEVCAPS锟斤拷式锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷BITSPIXEL锟斤拷PLANES锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞撅拷锟斤拷锟斤拷锟缴拷锟轿伙拷锟斤拷锟叫┲碉拷锟绞撅拷锟斤拷14-3锟斤拷示
| 锟斤拷14-3 |
| BITSPIXEL | PLANES | 锟斤拷色锟斤拷 |
|---|---|---|
| 1 | 1 | 2 |
| 1 | 4 | 16 |
| 8 | 1 | 256 |
| 15锟斤拷16 | 1 | 32,768锟斤拷65 536 |
| 24锟斤拷32 | 1 | 16 777 216 |
锟斤拷锟斤拷锟斤拷锟接︼拷貌锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟缴拷锟绞撅拷锟斤拷耍锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷耍锟斤拷锟斤拷锟接︼拷贸锟绞揭灿︼拷貌锟斤拷岱拷锟斤拷锟斤拷狻�
GDI支援锟侥碉拷锟斤拷图
锟斤拷
Windows图锟斤拷装锟矫斤拷锟芥（GDI锟斤拷Graphics Device Interface锟斤拷锟斤拷1.0锟芥开始支援锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷一直锟斤拷Windows 3.0锟斤拷前锟斤拷Windows锟斤拷唯一支援GDI锟斤拷锟斤拷锟街伙拷械锟斤拷锟酵硷拷锟斤拷缘锟斤拷锟酵硷拷锟斤拷锟斤拷锟绞癸拷谩锟斤拷锟叫〨DI锟斤拷锟斤拷图锟斤拷锟斤拷堑锟缴拷模锟斤拷锟斤拷锟斤拷锟绞碉拷实锟酵硷拷锟斤拷锟斤拷锟借备锟斤拷锟斤拷锟斤拷锟斤拷讯锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷同锟斤拷锟斤拷色锟斤拷位锟斤拷锟斤拷锟界，锟斤拷16色VGA锟斤拷锟捷的碉拷锟斤拷图锟斤拷锟侥革拷锟斤拷色锟芥。锟斤拷锟斤拷锟斤拷锟斤拷些锟斤拷色锟斤拷锟斤拷图锟斤拷锟杰达拷锟芥，也锟斤拷锟斤拷锟斤拷锟斤拷锟缴拷锟轿伙拷锟酵拷锟酵硷拷锟斤拷锟斤拷锟借备锟斤拷锟斤拷每图锟斤拷占8位元锟酵匡拷锟皆诧拷锟斤拷256锟斤拷锟斤拷色锟斤拷锟借备锟斤拷锟较★拷
锟斤拷Windows 3.0锟斤拷始锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟铰的碉拷锟斤拷图锟斤拷式锟斤拷锟斤拷锟角筹拷之为装锟斤拷锟睫关碉拷锟斤拷图锟斤拷device-independent bitmap锟斤拷锟斤拷锟斤拷锟斤拷DIB锟斤拷DIB锟斤拷锟斤拷锟斤拷锟皆硷拷锟侥碉拷色锟教ｏ拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷RGB锟斤拷色锟斤拷锟接︼拷锟酵硷拷锟轿辉拷锟紻IB锟斤拷锟斤拷示锟斤拷锟轿猴拷位元映锟斤拷锟斤拷锟斤拷璞革拷稀锟斤拷锟斤拷锟轿ㄒ伙拷锟斤拷锟斤拷锟斤拷锟紻IB锟斤拷锟斤拷色通锟斤拷一锟斤拷锟斤拷转锟斤拷锟斤拷锟借备实锟绞憋拷锟街筹拷锟斤拷锟斤拷锟斤拷色锟斤拷
锟斤拷DIB同时锟斤拷Windows 3.0锟斤拷锟斤拷锟斤拷锟剿★拷Windows锟斤拷色锟教癸拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟矫筹拷式锟杰癸拷锟斤拷锟斤拷示锟斤拷256锟斤拷锟斤拷色锟斤拷锟皆讹拷锟斤拷色锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟节碉拷十锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷应锟矫筹拷式通锟斤拷锟斤拷锟斤拷示DIB时使锟矫★拷锟斤拷色锟教癸拷锟斤拷锟斤拷锟斤拷锟斤拷
Microsoft锟斤拷Windows 95锟斤拷锟斤拷Windows NT 4.0锟斤拷锟斤拷锟斤拷展锟斤拷DIB锟侥讹拷锟藉，锟斤拷锟斤拷锟斤拷Windows 98锟斤拷锟斤拷Windows NT 5.0锟斤拷锟斤拷锟劫达拷锟斤拷展锟斤拷锟斤拷些锟斤拷展锟斤拷锟斤拷锟斤拷锟斤拷谓锟侥★拷图锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷锟斤拷ICM锟斤拷Image Color Management锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷DIB锟斤拷锟斤拷确锟斤拷指锟斤拷图锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷色锟斤拷锟揭斤拷锟节碉拷十锟斤拷锟铰硷拷要锟斤拷锟斤拷ICM锟斤拷
锟斤拷锟斤拷DIB锟斤拷么锟斤拷要锟斤拷锟节达拷锟斤拷锟斤拷锟斤拷图时锟斤拷锟斤拷锟节碉拷GDI锟斤拷锟斤拷图锟斤拷锟斤拷锟饺伙拷锟斤拷锟斤拷锟斤拷锟揭拷慕锟缴拷锟斤拷锟斤拷盏锟斤拷锟酵际癸拷梅锟绞斤拷锟斤拷锟矫凤拷锟斤拷锟角帮拷锟斤拷锟斤拷锟矫凤拷锟斤拷锟捷斤拷锟斤拷展锟斤拷时锟斤拷顺锟斤拷锟斤拷学习锟斤拷锟饺达拷GDI锟斤拷锟斤拷图锟斤拷锟斤拷锟轿辉拷榇拷锟侥革拷锟筋开始锟斤拷
位元锟介传锟斤拷
锟斤拷
锟斤拷前锟斤拷锟结到锟斤拷锟斤拷锟斤拷锟斤拷锟皆帮拷锟斤拷锟斤拷锟斤拷讯锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷锟接┠伙拷霞锟斤拷锟斤拷锟酵硷拷锟斤拷纱锟斤拷锟斤拷锟斤拷锟窖讹拷锟绞撅拷锟斤拷霞锟斤拷锟斤拷锟斤拷械锟轿辉拷锟斤拷锟斤拷锟斤拷锟斤拷魏锟斤拷锟窖讹拷锟绞撅拷木锟斤拷锟斤拷锟斤拷锟揭诧拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷小锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟角从斤拷图锟斤拷锟斤拷锟窖讹拷锟绞撅拷锟揭伙拷锟斤拷锟斤拷锟斤拷频锟斤拷锟揭伙拷锟斤拷锟斤拷颍锟绞硷拷锟斤拷锟斤拷诘锟斤拷锟酵硷拷锟斤拷锟斤拷锟斤拷锟叫吧ｏ拷锟斤拷锟斤拷锟角匡拷锟斤拷BitBlt锟斤拷式锟侥癸拷锟斤拷锟斤拷
Bitblt锟斤拷锟斤拷锟斤拷锟斤拷bit blit锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷位元锟介传锟戒（bit-block transfer锟斤拷锟斤拷锟斤拷BLT锟斤拷源锟揭伙拷锟斤拷锟斤拷锟斤拷锟斤拷指锟筋，锟斤拷指锟斤拷锟斤拷DEC PDP-10锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟介。锟斤拷锟斤「bitblt锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷Xerox Palo Alto Research Center锟斤拷PARC锟斤拷锟斤拷频锟絊mallTalk系统锟叫关★拷锟斤拷SmallTalk锟叫ｏ拷锟斤拷锟叫碉拷图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞癸拷锟絙itblt锟斤拷锟斤拷式写锟斤拷锟斤拷锟斤拷时锟斤拷blt锟斤拷锟斤拷锟斤拷锟绞ｏ拷锟斤拷锟界：锟斤拷Then I wrote some code to blt the happy face to the screen and play a wave file.锟斤拷
BitBlt锟斤拷式锟狡讹拷锟斤拷锟斤拷图锟截ｏ拷锟斤拷锟竭ｏ拷锟斤拷锟斤拷确锟截ｏ拷锟斤拷一锟斤拷位元映锟斤拷图锟介。锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤「锟斤拷锟戒（transfer锟斤拷锟斤拷锟斤拷BitBlt锟斤拷式锟斤拷锟斤拷锟斤拷同锟斤拷锟剿猴拷式实锟斤拷锟较讹拷图锟斤拷执锟斤拷锟斤拷一锟斤拷位元锟斤拷锟斤拷锟斤拷锟斤拷锟揭匡拷锟皆诧拷锟斤拷一些锟斤拷趣锟侥斤拷锟斤拷锟�
锟津单碉拷BitBlt
锟斤拷
锟斤拷式14-1锟斤拷示锟斤拷BITBLT锟斤拷式锟斤拷BitBlt锟斤拷式锟斤拷锟斤拷式系统锟侥癸拷锟杰憋拷图示锟斤拷位於筹拷式Windows锟斤拷锟斤拷锟较角ｏ拷锟斤拷锟狡碉拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷
锟斤拷式14-1 BITBLT
BITBLT.C
/*----------------------------------------------------------------------
BITBLT.C -- BitBlt Demonstration
(c) Charles Petzold, 1998
-------------------------------------------------------------------*/
#include <windows.h>
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName [] = TEXT ("BitBlt") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_INFORMATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow ( szAppName, TEXT ("BitBlt Demo"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}
LRESULT CALLBACK WndProc ( HWND hwnd, UINT message, WPARAM wParam,LPARAM lParam)
{
static int cxClient, cyClient, cxSource, cySource ;
HDC hdcClient, hdcWindow ;
int x, y ;
PAINTSTRUCT ps ;
switch (message)
{
case WM_CREATE:
cxSource = GetSystemMetrics (SM_CXSIZEFRAME) +
GetSystemMetrics (SM_CXSIZE) ;
cySource = GetSystemMetrics (SM_CYSIZEFRAME) +
GetSystemMetrics (SM_CYCAPTION) ;
return 0 ;
case WM_SIZE:
cxClient = LOWORD (lParam) ;
cyClient = HIWORD (lParam) ;
return 0 ;
case WM_PAINT:
hdcClient = BeginPaint (hwnd, &ps) ;
hdcWindow = GetWindowDC (hwnd) ;
for (y = 0 ; y < cyClient ; y += cySource)
for (x = 0 ; x < cxClient ; x += cxSource)
{
BitBlt (hdcClient, x, y, cxSource, cySource,
hdcWindow, 0, 0, SRCCOPY) ;
}
ReleaseDC (hwnd, hdcWindow) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
锟斤拷为什么只锟斤拷锟斤拷一锟斤拷BitBlt锟截ｏ拷实锟斤拷锟较ｏ拷锟角革拷BITBLT锟斤拷系统锟斤拷锟杰憋拷图示锟侥讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞撅拷锟斤拷锟斤拷诖锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷讯锟斤拷锟斤拷锟斤拷锟秸憋拷使锟矫碉拷IDI_INFORMATION图示锟斤拷锟斤拷锟斤拷图14-1锟斤拷示锟斤拷
锟斤拷
| 图14-1 BITBLT锟斤拷萤幕锟斤拷示 |
BitBlt锟斤拷式锟接筹拷为锟斤拷锟斤拷源锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟叫斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图锟截达拷锟戒到锟斤拷为锟斤拷目锟斤拷(destination)锟斤拷锟斤拷锟斤拷一锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷同锟斤拷小锟侥撅拷锟斤拷锟斤拷锟斤拷锟剿猴拷式锟斤拷锟斤法锟斤拷锟铰ｏ拷
BitBlt (hdcDst, xDst, yDst, cx, cy, hdcSrc, xSrc, ySrc, dwROP) ;
锟斤拷源锟斤拷目锟斤拷装锟斤拷锟斤拷锟捷匡拷锟斤拷锟斤拷同锟斤拷
锟斤拷BITBLT锟斤拷式锟叫ｏ拷目锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷锟接达拷锟斤拷锟斤拷示锟斤拷锟斤拷装锟斤拷锟斤拷锟捷达拷锟脚达拷BeginPaint锟斤拷式锟斤拷谩锟斤拷锟皆醋帮拷锟斤拷锟斤拷锟斤拷锟接︼拷贸锟绞斤拷锟斤拷锟斤拷锟斤拷哟锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷荽锟斤拷糯锟紾etWindowDC锟斤拷玫摹锟斤拷锟斤拷锟斤拷缘兀锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟街革拷锟斤拷锟酵伙拷锟绞碉拷锟斤拷璞革拷锟斤拷锟窖讹拷锟绞撅拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷莸锟斤拷锟斤拷锟皆拷悴煌拷锟�
xSrc锟斤拷ySrc锟斤拷锟斤拷指锟斤拷锟斤拷锟斤拷源图锟斤拷锟斤拷锟较角碉拷锟斤拷锟斤拷位锟矫★拷锟斤拷BITBLT锟叫ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷为0锟斤拷锟斤拷示图锟斤拷锟斤拷锟皆醋帮拷锟斤拷锟斤拷荩锟揭诧拷锟斤拷锟斤拷锟斤拷锟斤拷哟锟斤拷锟斤拷锟斤拷锟斤拷辖强锟绞硷拷锟絚x锟斤拷cy锟斤拷锟斤拷锟斤拷图锟斤拷目锟斤拷群透叨取锟紹ITBLT锟斤拷锟捷达拷GetSytemMetrics锟斤拷式锟斤拷玫锟斤拷锟窖讹拷锟斤拷锟斤拷锟斤拷锟叫┲碉拷锟�
xDst锟斤拷yDst锟斤拷锟斤拷锟斤拷示锟剿革拷锟斤拷图锟斤拷位锟斤拷锟斤拷锟较角碉拷锟斤拷锟斤拷位锟矫★拷锟斤拷BITBLT锟叫ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟借定为锟斤拷同锟斤拷值锟皆憋拷锟轿革拷锟斤拷图锟今。讹拷於碉拷一锟斤拷BitBlt锟斤拷锟叫ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷为0锟斤拷锟斤拷图锟斤拷锟狡碉拷锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷辖锟轿伙拷谩锟�
BitBlt锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷位元映锟斤拷锟斤拷锟斤拷锟教拷锟斤拷医锟斤拷锟教碉拷锟斤拷锟斤拷一锟斤拷锟斤拷锟街碉拷锟�
锟斤拷注锟解，BitBlt锟角达拷实锟斤拷锟斤拷讯锟斤拷示锟斤拷锟斤拷锟藉传锟斤拷图锟截ｏ拷锟斤拷锟斤拷锟角达拷系统锟斤拷锟杰憋拷图示锟斤拷锟斤拷锟斤拷图锟斤拷锟戒。锟斤拷锟斤拷锟斤拷贫锟紹ITBLT锟接达拷锟斤拷使锟斤拷锟斤拷系统锟斤拷锟杰憋拷图示锟狡筹拷萤幕锟斤拷然锟斤拷锟斤拷锟紹ITBLT锟接达拷锟侥尺达拷使锟斤拷锟截伙拷锟斤拷锟斤拷时锟斤拷锟斤拷锟斤拷锟斤拷BITBLT锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟角癸拷锟杰憋拷图示锟斤拷一锟斤拷锟街★拷BitBlt锟斤拷式锟斤拷锟劫达拷取锟斤拷锟斤拷图锟斤拷
锟斤拷BitBlt锟斤拷式锟叫ｏ拷锟斤拷源锟斤拷目锟斤拷装锟斤拷锟斤拷锟捷匡拷锟斤拷锟斤拷同锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟铰憋拷写BITBLT锟斤拷使WM_PAINT锟斤拷锟斤拷执锟斤拷锟斤拷锟斤拷锟斤拷锟捷ｏ拷
BitBlt (hdcClient, 0, 0, cxSource, cySource,
hdcWindow, 0, 0, SRCCOPY) ;
for (y = 0 ; y < cyClient ; y += cySource)
for (x = 0 ; x < cxClient ; x += cxSource)
{
if (x > 0 || y > 0)
BitBlt (hdcClient, x, y, cxSource, cySource,
hdcClient, 0, 0, SRCCOPY) ;
}
锟解将锟斤拷前锟斤拷锟斤拷示锟斤拷BITBLT一锟斤拷锟斤拷锟斤拷锟斤拷同锟斤拷效锟斤拷锟斤拷只锟斤拷锟斤拷示锟斤拷锟斤拷锟斤拷锟较角比斤拷模锟斤拷锟斤拷
锟斤拷BitBlt锟节碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷荼锟斤拷锟斤拷锟斤拷锟斤拷莸摹锟斤拷锟斤拷锟轿讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟街伙拷锟斤拷锟斤拷堑锟缴拷模锟斤拷锟斤拷锟斤拷锟斤拷叩锟矫匡拷锟酵硷拷囟锟斤拷锟酵拷锟轿辉拷锟斤拷锟斤拷芏锟斤拷锟街拷锟斤拷锟斤拷锟斤拷锟斤拷么朔锟斤拷锟斤拷锟接┠伙拷系锟侥承┩硷拷胃锟斤拷频锟接★拷锟斤拷锟斤拷锟�
锟斤拷锟斤拷锟斤拷锟酵�
锟斤拷
锟斤拷BitBlt锟斤拷式锟叫ｏ拷目锟斤拷图锟斤拷锟斤拷锟斤拷源图锟斤拷某叽锟斤拷锟斤拷锟酵拷模锟斤拷锟轿拷锟绞街伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟剿碉拷锟斤拷锟斤拷群透叨取锟斤拷锟斤拷锟斤拷锟斤拷锟节革拷锟斤拷时锟斤拷锟斤拷锟斤拷锟窖癸拷锟酵硷拷锟竭寸，锟斤拷锟斤拷使锟斤拷StretchBlt锟斤拷式锟斤拷StretchBlt锟斤拷式锟斤拷锟斤法锟斤拷锟铰ｏ拷
StretchBlt ( hdcDst, xDst, yDst, cxDst, cyDst,
hdcSrc, xSrc, ySrc, cxSrc, cySrc, dwROP) ;
锟剿猴拷式锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟节的猴拷式锟酵分憋拷锟斤拷锟斤拷锟侥匡拷暮锟斤拷锟皆达拷锟斤拷缘目锟斤拷群透叨取锟絊TRETCH锟斤拷式展示锟斤拷StretchBlt锟斤拷式锟斤拷锟斤拷锟绞�14-2锟斤拷示锟斤拷
锟斤拷式14-2 STRETCH
STRETCH.C
/*--------------------------------------------------------------------------
STRETCH.C -- StretchBlt Demonstration
(c) Charles Petzold, 1998
----------------------------------------------------------------------------*/
#include <windows.h>
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName [] = TEXT ("Stretch") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_INFORMATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox ( NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, TEXT ("StretchBlt Demo"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}
LRESULT CALLBACK WndProc ( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static int cxClient, cyClient, cxSource, cySource ;
HDC hdcClient, hdcWindow ;
PAINTSTRUCT ps ;
switch (message)
{
case WM_CREATE:
cxSource = GetSystemMetrics (SM_CXSIZEFRAME) +
GetSystemMetrics (SM_CXSIZE) ;
cySource = GetSystemMetrics (SM_CYSIZEFRAME) +
GetSystemMetrics (SM_CYCAPTION) ;
return 0 ;
case WM_SIZE:
cxClient = LOWORD (lParam) ;
cyClient = HIWORD (lParam) ;
return 0 ;
case WM_PAINT:
hdcClient = BeginPaint (hwnd, &ps) ;
hdcWindow = GetWindowDC (hwnd) ;
StretchBlt (hdcClient, 0, 0, cxClient, cyClient,
hdcWindow, 0, 0, cxSource, cySource, MERGECOPY) ;
ReleaseDC (hwnd, hdcWindow) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
锟剿筹拷式只锟叫猴拷锟斤拷锟斤拷StretchBlt锟斤拷式一锟轿ｏ拷锟斤拷锟斤拷锟斤拷锟矫此猴拷式锟斤拷系统锟斤拷锟杰憋拷图示锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞撅拷锟斤拷锟斤拷锟酵�14-2锟斤拷示锟斤拷
锟斤拷
| 图14-2 STRETCH锟斤拷萤幕锟斤拷示 |
BitBlt锟斤拷StretchBlt锟斤拷式锟斤拷锟斤拷锟叫碉拷锟斤拷锟斤拷锟斤拷锟叫★拷锟斤拷锟斤拷锟斤拷锟斤拷呒锟斤拷锟轿伙拷摹锟斤拷锟斤拷堑锟斤拷锟斤拷锟紹itBlt锟斤拷式锟叫讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷同锟斤拷装锟斤拷锟斤拷锟捷ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷然锟轿匡拷同一锟斤拷实锟斤拷锟借备锟斤拷却锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷同锟斤拷映锟斤拷模式锟斤拷锟斤拷时锟斤拷锟斤拷锟斤拷什么锟斤拷锟斤拷兀锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟紹itBlt锟斤拷锟斤拷锟侥斤拷锟斤拷锟斤拷缘貌锟斤拷锟饺凤拷耍锟絚x锟斤拷cy锟斤拷锟斤拷锟斤拷锟斤拷锟竭硷拷锟斤拷位锟斤拷锟斤拷锟斤拷锟斤拷同锟斤拷应锟斤拷锟斤拷锟皆醋帮拷锟斤拷锟斤拷莺锟侥匡拷锟阶帮拷锟斤拷锟斤拷锟斤拷械木锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷械锟斤拷锟斤拷锟酵尺达拷锟斤拷锟斤拷锟绞碉拷实锟轿辉拷锟斤拷锟街白拷锟轿帮拷锟斤拷锟斤拷辍ｏ拷锟轿猚x锟斤拷cy值同时锟斤拷锟斤拷锟皆达拷锟侥匡拷锟阶帮拷锟斤拷锟斤拷荩锟斤拷锟斤拷源锟街碉拷锟斤拷锟阶拷锟轿帮拷锟斤拷锟斤拷锟斤拷约锟斤拷牡锟轿伙拷锟�
锟斤拷锟斤拷源锟斤拷目锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷同锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷讹拷使锟斤拷MM_TEXT图锟斤拷模式时锟斤拷装锟矫碉拷位锟铰的撅拷锟轿尺达拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟叫伙拷锟斤拷锟斤拷同锟侥ｏ拷然锟斤拷锟斤拷锟絎indows锟斤拷锟斤拷图锟截讹拷图锟截碉拷转锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟阶帮拷玫锟轿伙拷碌木锟斤拷纬叽锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟斤拷胁锟酵憋拷锟斤拷锟絎indows锟酵把此癸拷锟斤拷转锟斤拷锟斤拷锟斤拷通锟矫碉拷StretchBlt锟斤拷式锟斤拷
StretchBlt也锟斤拷锟斤拷水平锟斤拷直锟斤拷转图锟斤拷锟斤拷锟絚xSrc锟斤拷cxDst锟斤拷牵锟阶拷锟斤拷锟阶帮拷玫锟轿伙拷锟斤拷幔╋拷锟酵拷锟斤拷锟矫碨tretchBlt锟酵斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟揭凤拷转锟斤拷锟斤拷STRETCH锟斤拷式锟叫ｏ拷通锟斤拷锟斤拷xDst锟斤拷锟斤拷锟斤拷为cxClient锟斤拷锟斤拷cxDst锟斤拷锟斤拷锟侥筹拷-cxClient锟斤拷锟斤拷锟酵匡拷锟斤拷锟斤拷锟斤拷锟斤拷一锟姐。锟斤拷锟絚ySrc锟斤拷cyDst锟斤拷同锟斤拷锟斤拷StretchBlt锟斤拷锟斤拷锟铰凤拷转图锟斤拷要锟斤拷STRETCH锟斤拷式锟叫诧拷锟斤拷锟斤拷一锟姐，锟缴斤拷yDst锟斤拷锟斤拷锟斤拷为cyClient锟斤拷锟斤拷cyDst锟斤拷锟斤拷锟侥筹拷-cyClient锟斤拷
StretchBlt模式
锟斤拷
使锟斤拷StretchBlt锟斤拷锟斤拷锟斤拷一些锟斤拷锟斤拷锟酵硷拷锟叫★拷锟斤拷锟斤拷锟截碉拷一些锟斤拷锟斤拷锟斤拷锟解。锟斤拷锟斤拷展一锟斤拷锟斤拷锟斤拷图时锟斤拷StretchBlt锟斤拷锟诫复锟斤拷图锟斤拷锟叫伙拷锟叫★拷锟斤拷锟斤拷糯锟斤拷锟斤拷锟斤拷锟皆硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟矫达拷瞬锟斤拷锟斤拷锟斤拷锟缴诧拷锟斤拷锟斤拷图锟斤拷锟斤拷些失锟芥。
锟斤拷锟侥匡拷木锟斤拷伪锟斤拷锟皆达拷锟斤拷锟叫★拷锟斤拷锟矫碨tretchBlt锟斤拷锟斤拷小图锟斤拷时锟酵憋拷锟斤拷锟斤拷锟斤拷校锟斤拷锟斤拷校锟斤拷锟斤拷叨锟斤拷校锟斤拷锟斤拷校锟斤拷锟酵硷拷睾喜锟斤拷锟揭伙拷校锟斤拷锟斤拷校锟斤拷锟斤拷锟缴此诧拷锟斤拷锟斤拷锟斤拷锟街凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷展模式锟斤拷锟斤拷锟斤拷选锟斤拷锟斤拷锟斤拷一锟街凤拷锟斤拷锟斤拷锟斤拷锟斤拷使锟斤拷SetStretchBltMode锟斤拷式锟斤拷锟睫革拷锟斤拷锟斤拷锟斤拷浴锟�
SetStretchBltMode (hdc, iMode) ;
iMode锟斤拷取锟斤拷锟斤拷值锟斤拷
- BLACKONWHITE锟斤拷锟斤拷STRETCH_ANDSCANS锟斤拷锟节讹拷锟斤拷
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵硷拷氐煤喜锟斤拷锟揭伙拷锟酵硷拷兀锟斤拷锟矫碨tretchBlt锟斤拷锟酵硷拷锟街达拷锟揭伙拷锟斤拷呒锟紸ND锟斤拷锟姐。锟斤拷锟斤拷锟侥斤拷锟斤拷锟街伙拷锟饺拷锟斤拷锟皆纪硷拷锟斤拷前锟缴憋拷锟酵硷拷夭锟轿拷锟缴拷锟斤拷锟绞碉拷锟斤拷锟斤拷锟斤拷呛锟缴硷拷乜锟斤拷锟斤拷税锟缴硷拷亍锟斤拷锟斤拷锟斤拷锟届栋妆锟斤拷锟斤拷锟斤拷锟揭拷呛锟缴拷牡锟缴拷锟斤拷锟酵硷拷锟�
锟斤拷 - WHITEONBLACK锟斤拷STRETCH_ORSCANS
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵硷拷氐煤喜锟斤拷锟揭伙拷锟酵硷拷兀锟斤拷锟矫碨tretchBlt执锟斤拷锟竭硷拷OR锟斤拷锟姐。锟斤拷锟斤拷锟侥斤拷锟斤拷锟街伙拷锟饺拷锟斤拷锟皆纪硷拷囟锟斤拷呛锟缴憋拷锟斤拷呛锟缴拷锟揭诧拷锟斤拷锟剿碉拷砂锟缴硷拷鼐锟斤拷锟斤拷锟缴拷锟斤拷锟斤拷锟斤拷锟届逗锟缴拷锟斤拷锟斤拷锟斤拷锟揭拷前锟缴拷牡锟缴拷锟斤拷锟酵硷拷锟�
锟斤拷 - COLORONCOLOR锟斤拷STRETCH_DELETESCANS StretchBlt锟津单碉拷锟斤拷锟斤拷图锟斤拷锟叫伙拷锟叫ｏ拷锟斤拷没锟斤拷锟轿猴拷锟竭硷拷锟斤拷稀锟斤拷锟斤拷锟酵拷锟斤拷谴锟斤拷锟斤拷锟缴拷锟斤拷锟酵硷拷锟斤拷锟窖凤拷锟斤拷锟斤拷
锟斤拷 - HALFTONE锟斤拷STRETCH_HALFTONE
Windows锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆达拷锟缴拷锟斤拷锟斤拷锟侥匡拷牡锟狡斤拷锟斤拷锟缴拷锟斤拷饨拷锟斤拷锟斤拷锟缴拷锟斤拷锟斤拷锟绞癸拷茫锟斤拷锟绞拷锟斤拷陆锟秸故撅拷锟揭伙拷锟斤拷锟�
锟斤拷
Windows锟斤拷锟斤拷锟斤拷锟斤拷锟饺★拷锟侥壳帮拷锟秸鼓Ｊ斤拷锟紾etStretchBltMode锟斤拷式锟斤拷
位元映锟斤拷锟斤拷锟�
锟斤拷
BITBLT锟斤拷STRETCH锟斤拷式锟津单地斤拷锟斤拷源锟斤拷锟斤拷图锟斤拷锟狡革拷锟斤拷目锟侥碉拷锟斤拷图锟斤拷锟节癸拷锟斤拷锟斤拷也锟斤拷锟杰斤拷锟斤拷锟斤拷锟斤拷锟脚★拷锟斤拷锟角帮拷SRCCOPY锟斤拷为BitBlt锟斤拷StretchBlt锟斤拷式锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟侥斤拷锟斤拷锟絊RCCOPY只锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷些锟斤拷式锟斤拷使锟矫碉拷256锟斤拷位元映锟斤拷锟斤拷锟斤拷械锟揭伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絊TRETCH锟斤拷式锟斤拷锟斤拷一锟斤拷锟斤拷锟绞碉拷椋伙拷锟斤拷锟较低筹拷锟斤拷芯锟轿辉筹拷锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷NOTSRCCOPY锟斤拷锟斤拷锟斤拷SRCCOPY锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷位元映锟斤拷锟斤拷锟斤拷诟锟斤拷频锟斤拷锟酵际弊拷锟斤拷锟斤拷锟缴拷锟斤拷锟斤拷锟绞撅拷锟斤拷锟斤拷哟锟斤拷锟斤拷锟斤拷械锟斤拷锟缴拷锟斤拷锟斤拷锟缴拷锟缴帮拷色锟斤拷锟斤拷色锟斤拷珊锟缴拷锟斤拷锟缴拷锟缴伙拷色锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷SRCINVERT锟斤拷锟斤拷锟斤拷锟矫碉拷同锟斤拷效锟斤拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟紹LACKNESS锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟津都斤拷锟斤拷珊锟缴拷锟斤拷锟絎HITENESS锟斤拷使锟斤拷锟缴帮拷色锟斤拷
锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷StretchBlt锟斤拷锟叫ｏ拷
SelectObject (hdcClient, CreateHatchBrush (HS_DIAGCROSS, RGB (0, 0, 0)));
StretchBlt ( hdcClient, 0, 0, cxClient, cyClient,
hdcWindow, 0, 0, cxSource, cySource, MERGECOPY) ;
DeleteObject (hdcClient, GetStockObject (WHITE_BRUSH)) ;
锟斤拷危锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷峡锟斤拷锟揭伙拷锟斤拷锟斤拷蔚幕锟剿拷锟斤拷锟斤拷锟绞裁达拷锟�
锟斤拷锟斤拷前锟斤拷说锟斤拷锟斤拷BitBlt锟斤拷StretchBlt锟斤拷式锟斤拷锟角简单碉拷位元锟介传锟戒。锟剿猴拷式实锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷锟街达拷锟轿辉拷锟斤拷锟斤拷锟�
- Source 锟斤拷源锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟窖癸拷锟斤拷锟斤拷锟斤拷锟叫憋拷要锟斤拷锟斤拷目锟侥撅拷锟轿的尺寸。
锟斤拷 - Destination 锟斤拷BitBlt锟斤拷StretchBlt锟斤拷锟斤拷之前锟斤拷目锟侥撅拷锟轿★拷
锟斤拷 - Pattern 锟斤拷目锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷选锟斤拷锟侥壳帮拷锟剿拷锟剿斤拷锟街憋拷馗锟斤拷频锟侥匡拷木锟斤拷畏锟轿э拷凇锟�
锟斤拷
锟斤拷锟斤拷歉锟斤拷频锟斤拷锟侥匡拷木锟斤拷锟斤拷小锟�
位元映锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷诘锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷幕锟酵寄Ｊ斤拷诟锟斤拷锟斤拷锟斤拷锟斤拷啤锟斤拷锟酵寄Ｊ斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷锟侥匡拷锟斤拷锟筋方式锟斤拷锟斤拷锟斤拷一锟斤拷锟竭撅拷锟斤拷铣锟揭伙拷锟侥匡拷摹锟斤拷锟斤拷锟街拷锟斤拷锟�16锟街伙拷图模式锟斤拷也锟斤拷锟斤拷说锟斤拷锟斤拷锟斤拷械锟�0锟斤拷1锟斤拷锟斤拷时锟斤拷唯一锟斤拷锟斤拷锟斤拷锟侥匡拷锟斤拷锟�0锟斤拷1锟斤拷锟斤拷稀锟�
使锟斤拷BitBlt锟斤拷StretchBlt锟斤拷位元映锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷希锟斤拷饨拷锟斤拷锟�256锟斤拷位元映锟斤拷锟斤拷锟斤拷锟斤拷锟�256锟街凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆达拷锟斤拷锟酵硷拷锟侥匡拷牡锟斤拷锟酵硷拷锟酵硷拷锟斤拷锟斤拷锟�15锟斤拷位元映锟斤拷锟斤拷锟斤拷丫锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭恍╋拷锟斤拷锟斤拷锟绞碉拷锟斤拷锟斤拷芄锟斤拷锟斤拷锟斤拷锟剿碉拷锟斤拷锟斤拷锟斤拷澹拷锟斤拷嵌锟斤拷锟斤拷锟絎INGDI.H锟斤拷头锟斤拷锟斤拷锟斤拷亩锟斤拷锟斤拷锟街碉拷锟斤拷锟斤拷锟�/Platform SDK/Graphics and Multimedia Services/GDI/Raster Operation Codes/Ternary Raster Operations之锟叫★拷
锟斤拷锟斤拷锟狡碉拷15锟斤拷ROP锟斤拷锟斤拷锟斤拷锟�14-4锟斤拷
| 锟斤拷14-4 |
|
图锟斤拷锟斤拷P锟斤拷锟斤拷1 1 1 1 0 0 0 0 锟斤拷源锟斤拷s锟斤拷锟斤拷1 1 0 0 1 1 0 0 目锟侥ｏ拷D锟斤拷锟斤拷1 0 1 0 1 0 1 0 |
锟斤拷锟街诧拷锟斤拷 | ROP 锟斤拷锟斤拷 | 锟斤拷锟斤拷 | |
|---|---|---|---|---|
| 锟斤拷锟斤拷锟� | 0 0 0 0 0 0 0 0 | 0 | 0x000042 | BLACKNESS |
| 0 0 0 1 0 0 0 1 | ~(S ¦ D) | 0x1100A6 | NOTSRCERASE | |
| 0 0 1 1 0 0 1 1 | ~S | 0x330008 | NOTSRCCOPY | |
| 0 1 0 0 0 1 0 0 | S & ~D | 0x440328 | SRCERASE | |
| 0 1 0 1 0 1 0 1 | ~D | 0x550009 | DSTINVERT | |
| 0 1 0 1 1 0 1 0 | P ^ D | 0x5A0049 | PATINVERT | |
| 0 1 1 0 0 1 1 0 | S ^ D | 0x660046 | SRCINVERT | |
| 1 0 0 0 1 0 0 0 | S & D | 0x8800C6 | SRCAND | |
| 1 0 1 1 1 0 1 1 | ~S ¦ D | 0xBB0226 | MERGEPAINT | |
| 1 1 0 0 0 0 0 0 | P & S | 0xC000CA | MERGECOPY | |
| 1 1 0 0 1 1 0 0 | S | 0xCC0020 | SRCCOPY | |
| 1 1 1 0 1 1 1 0 | S ¦ D | 0xEE0086 | SRCPAINT | |
| 1 1 1 1 0 0 0 0 | P | 0xF00021 | PATCOPY | |
| 1 1 1 1 1 0 1 1 | P ¦ ~S ¦ D | 0xFB0A09 | PATPAINT | |
| 1 1 1 1 1 1 1 1 | 1 | 0xFF0062 | WHITENESS | |
锟剿憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞癸拷锟轿辉筹拷锟斤拷锟斤拷锟角筹拷锟斤拷要锟斤拷锟斤拷锟斤拷锟斤拷锟接︼拷锟斤拷锟绞憋拷锟斤拷锟斤拷芯锟斤拷锟�
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷校锟斤拷锟絉OP锟斤拷锟诫」锟叫碉拷值锟斤拷锟斤拷锟捷革拷BitBlt锟斤拷StretchBlt锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟节★拷锟斤拷锟狡★拷锟斤拷锟叫碉拷值锟斤拷WINGDI.H锟斤拷锟藉。ROP锟斤拷锟斤拷牡锟斤拷锟斤拷锟叫拷锟阶帮拷锟斤拷锟斤拷锟斤拷锟绞斤拷锟斤拷锟轿辉筹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷0锟斤拷255之锟斤拷锟斤拷锟街碉拷锟斤拷锟斤拷锟街碉拷锟斤拷2锟叫碉拷图锟斤拷锟斤拷位元锟斤拷同锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷源锟斤拷锟斤拷示锟节讹拷锟斤拷锟斤拷目锟斤拷之锟斤拷锟斤拷锟轿辉拷锟斤拷锟斤拷慕锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟姐」锟叫帮拷C锟斤法锟斤拷示图锟斤拷锟斤拷锟斤拷源锟斤拷目锟侥碉拷锟斤拷戏锟绞斤拷锟�
要锟斤拷始锟剿斤拷吮锟斤拷锟斤拷锟津单的办法锟角假讹拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷色系统锟斤拷每图锟斤拷1位元锟斤拷锟斤拷锟斤拷0锟斤拷锟斤拷锟斤拷色锟斤拷1锟斤拷锟斤拷锟斤拷色锟斤拷BLACKNESS锟斤拷锟斤拷锟侥斤拷锟斤拷遣锟斤拷锟斤拷锟斤拷锟皆达拷锟侥匡拷暮锟酵硷拷锟斤拷锟绞裁达拷锟饺拷锟轿拷悖拷锟斤拷目锟侥斤拷锟斤拷示锟斤拷色锟斤拷锟斤拷锟狡地ｏ拷WHITENESS锟杰碉拷锟斤拷目锟侥呈帮拷色锟斤拷
锟斤拷锟节假讹拷锟斤拷使锟斤拷位元映锟斤拷锟斤拷锟絇ATCOPY锟斤拷锟解导锟铰斤拷锟轿辉拷锟酵硷拷锟轿辉拷锟酵拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆达拷锟侥匡拷牡锟斤拷锟酵硷拷锟斤拷锟斤拷浠八碉拷锟絇ATCOPY锟津单地斤拷目前图锟斤拷锟斤拷锟狡革拷锟斤拷目锟侥撅拷锟轿★拷
PATPAINT位元映锟斤拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟斤拷拥牟锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵拷锟斤拷图锟斤拷锟斤拷目锟侥和凤拷转锟斤拷锟斤拷源之锟斤拷锟斤拷锟轿辉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷源锟斤拷锟斤拷图锟角猴拷色锟斤拷0锟斤拷时锟斤拷锟斤拷锟斤拷锟斤拷锟角帮拷色锟斤拷1锟斤拷锟斤拷锟斤拷锟斤拷源锟角帮拷色锟斤拷1锟斤拷时锟斤拷只要图锟斤拷锟斤拷目锟斤拷为锟斤拷色锟斤拷锟斤拷锟斤拷锟斤拷锟角帮拷色锟斤拷锟斤拷锟戒话说锟斤拷只锟斤拷锟斤拷源为锟斤拷色锟斤拷图锟斤拷锟斤拷目锟侥讹拷锟角猴拷色时锟斤拷锟斤拷锟斤拷锟斤拷呛锟缴拷锟�
锟斤拷色锟斤拷示时每锟斤拷图锟截讹拷使锟斤拷锟剿讹拷锟轿辉拷锟紹itBlt锟斤拷StretchBlt锟斤拷式锟斤拷每锟斤拷锟斤拷色位元锟斤拷锟街憋拷锟结供锟斤拷位元锟斤拷锟斤拷锟斤拷锟斤拷锟界，锟斤拷锟侥匡拷锟斤拷呛锟缴拷锟斤拷锟皆次拷锟缴拷锟絊RCPAINT位元映锟斤拷锟斤拷锟斤拷锟侥匡拷谋锟斤拷锟斤拷锟缴拷锟阶拷猓拷锟斤拷锟绞碉拷锟斤拷前锟斤拷锟绞撅拷锟斤拷诖锟斤拷锟斤拷位元执锟叫的★拷锟斤拷些位元锟斤拷锟斤拷应锟斤拷锟斤拷色取锟斤拷锟斤拷锟绞撅拷锟斤拷牡锟缴拷痰锟斤拷瓒拷锟絎indows锟斤拷锟斤拷舜瞬锟斤拷锟斤拷锟斤拷员锟轿辉筹拷锟斤拷锟斤拷锟杰达到锟斤拷预锟狡的斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟睫革拷锟剿碉拷色锟教ｏ拷锟揭斤拷锟节碉拷十锟斤拷锟斤拷锟斤拷锟桔ｏ拷锟斤拷位元映锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷薹锟皆わ拷系慕锟斤拷锟斤拷
锟斤拷要锟矫碉拷位元映锟斤拷锟斤拷锟斤拷虾玫锟接︼拷贸锟绞斤拷锟斤拷锟轿硷拷锟斤拷锟斤拷锟斤拷锟斤拷摹锟斤拷蔷锟斤拷蔚锟斤拷锟酵纪硷拷锟揭伙拷凇锟�
图锟斤拷Blt
锟斤拷
锟斤拷锟斤拷BitBlt锟斤拷StretchBlt锟斤拷锟解，Windows锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷为PatBlt 锟斤拷锟斤拷pattern block transfer锟斤拷图锟斤拷锟介传锟戒」锟斤拷锟侥猴拷式锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷blt锟斤拷锟斤拷式锟斤拷锟斤拷虻サ摹锟斤拷锟紹itBlt锟斤拷StretchBlt锟斤拷同锟斤拷锟斤拷只使锟斤拷一锟斤拷目锟斤拷装锟斤拷锟斤拷锟捷★拷PatBlt锟斤法锟角ｏ拷
PatBlt (hdc, x, y, cx, cy, dwROP) ;
x锟斤拷y锟斤拷cx锟斤拷cy锟斤拷锟斤拷位锟斤拷呒锟斤拷锟轿伙拷锟斤拷呒锟斤拷悖▁,y锟斤拷指锟斤拷锟剿撅拷锟轿碉拷锟斤拷锟较角★拷锟斤拷锟轿匡拷为cx锟斤拷位锟斤拷锟斤拷为cy锟斤拷位锟斤拷锟斤拷锟斤拷PatBlt锟睫改的撅拷锟斤拷锟斤拷锟斤拷PatBlt锟节伙拷刷锟斤拷目锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷执锟叫碉拷锟竭硷拷锟斤拷锟斤拷锟斤拷dwROP锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟剿诧拷锟斤拷锟斤拷ROP锟斤拷锟斤拷锟斤拷蛹锟斤拷锟揭诧拷锟斤拷锟剿碉拷锟斤拷锟斤拷锟斤拷锟街皇癸拷锟斤拷锟叫╋拷锟斤拷锟斤拷锟斤拷锟皆茨匡拷锟阶帮拷锟斤拷锟斤拷莸锟絉OP锟斤拷锟诫。锟铰憋拷锟叫筹拷锟斤拷PatBlt支援锟斤拷16锟斤拷位元映锟斤拷锟斤拷锟斤拷锟�
| 锟斤拷14-5 |
|
图锟斤拷锟斤拷P锟斤拷锟斤拷1 1 0 0
目锟侥ｏ拷D锟斤拷锟斤拷1 0 1 0 |
锟斤拷锟街诧拷锟斤拷 | ROP 锟斤拷锟斤拷 | 锟斤拷锟斤拷 | |
|---|---|---|---|---|
| 锟斤拷锟斤拷锟� | 0 0 0 0 | 0 | 0x000042 | BLACKNESS |
| 0 0 0 1 | ~(P | D) | 0x0500A9 | ||
| 0 0 1 0 | ~P & D | 0x0A0329 | ||
| 0 0 1 1 | ~P | 0x0F0001 | ||
| 0 1 0 0 | P & ~D | 0x500325 | ||
| 0 1 0 1 | ~D | 0x550009 | DSTINVERT | |
| 0 1 1 0 | P ^ D | 0x5A0049 | PATINVERT | |
| 0 1 1 1 | ~(P & D) | 0x5F00E9 | ||
| 1 0 0 0 | P & D | 0xA000C9 | ||
| 1 0 0 1 | ~(P ^ D) | 0xA50065 | ||
| 1 0 1 0 | D | 0xAA0029 | ||
| 1 0 1 1 | ~P | D | 0xAF0229 | ||
| 1 1 0 0 | P | 0xF00021 | PATCOPY | |
| 1 1 0 1 | P | ~D | 0xF50225 | ||
| 1 1 1 0 | P | D | 0xFA0089 | ||
| 1 1 1 1 | 1 | 0xFF0062 | WHITENESS | |
锟斤拷锟斤拷锟叫筹拷锟斤拷PatBlt一些锟斤拷锟斤拷锟斤拷锟斤拷途锟斤拷锟斤拷锟斤拷牖伙拷锟斤拷锟缴拷锟斤拷危锟斤拷锟斤拷珊锟斤拷锟�
PatBlt (hdc, x, y, cx, cy, BLACKNESS) ;
要锟斤拷一锟斤拷锟斤拷色锟斤拷锟轿ｏ拷锟斤拷锟斤拷
PatBlt (hdc, x, y, cx, cy, WHITENESS) ;
锟斤拷式
PatBlt (hdc, x, y, cx, cy, DSTINVERT) ;
锟斤拷於改憋拷锟斤拷蔚锟斤拷锟缴拷锟斤拷锟斤拷目前装锟斤拷锟斤拷锟斤拷锟斤拷选锟斤拷锟斤拷WHITE_BRUSH锟斤拷锟斤拷么锟斤拷式
PatBlt (hdc, x, y, cx, cy, PATINVERT) ;
也锟侥憋拷锟斤拷巍锟�
锟斤拷锟斤拷锟斤拷锟劫次猴拷锟斤拷FillRect锟斤拷式锟斤拷锟矫伙拷锟绞筹拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
FillRect (hdc, &rect, hBrush) ;
FillRect锟斤拷式锟斤拷同锟斤拷锟斤拷写锟斤拷耄�
hBrush = SelectObject (hdc, hBrush) ;
PatBlt (hdc, rect.left, rect.top,
rect.right - rect.left,
rect.bottom - rect.top, PATCOPY) ;
SelectObject (hdc, hBrush) ;
实锟斤拷锟较ｏ拷锟剿筹拷式锟斤拷锟斤拷Windows锟斤拷锟街达拷锟紽illRect锟斤拷式锟侥讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�
InvertRect (hdc, &rect) ;
Windows锟斤拷锟斤拷转锟斤拷锟缴猴拷式锟斤拷
PatBlt (hdc, rect.left, rect.top,
rect.right - rect.left,
rect.bottom - rect.top, DSTINVERT) ;
锟节斤拷锟斤拷PatBlt锟斤拷式锟斤拷锟斤法时锟斤拷锟斤拷说锟斤拷锟姐（x,y锟斤拷指锟斤拷锟剿撅拷锟轿碉拷锟斤拷锟较角ｏ拷锟斤拷锟揭此撅拷锟轿匡拷锟斤拷为cx锟斤拷位锟斤拷锟竭讹拷为cy锟斤拷位锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷全锟斤拷确锟斤拷BitBlt锟斤拷PatBlt锟斤拷StretchBlt锟斤拷锟斤拷锟斤拷实锟紾DI锟斤拷图锟斤拷式锟斤拷锟斤拷锟角革拷锟捷达拷一锟斤拷锟角诧拷玫锟斤拷呒锟斤拷锟斤拷群透叨锟斤拷锟街革拷锟斤拷呒锟街憋拷锟斤拷锟斤拷辍ｏ拷锟斤拷伪呖锟斤拷玫锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟紾DI锟斤拷图锟斤拷式锟斤拷要锟斤拷锟斤拷锟斤拷锟斤拷辖呛锟斤拷锟斤拷陆堑锟斤拷锟斤拷锟斤拷锟街革拷锟斤拷锟斤拷辍ｏ拷锟斤拷MM_TEXT映锟斤拷模式锟斤拷锟斤拷锟芥讲锟斤拷锟斤拷PatBlt锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷确锟侥★拷然锟斤拷锟斤拷於癸拷锟狡碉拷映锟斤拷模式锟斤拷说锟斤拷锟酵诧拷锟斤拷确锟斤拷锟斤拷锟斤拷锟绞癸拷锟揭伙拷锟絚x锟斤拷cy值锟斤拷锟斤拷么锟姐（x,y锟斤拷锟斤拷锟角撅拷锟轿碉拷锟斤拷锟铰角★拷锟斤拷锟较ｏ拷锟斤拷悖▁,y锟斤拷锟角撅拷锟轿碉拷锟斤拷锟较角ｏ拷锟斤拷么cy锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷为锟斤拷锟轿的革拷锟竭度★拷
锟斤拷锟斤拷锟斤拷锟斤拷确锟斤拷锟斤拷PatBlt锟睫革拷锟斤拷色锟侥撅拷锟轿斤拷通锟斤拷cx锟侥撅拷锟斤拷值锟斤拷锟斤拷呒锟斤拷锟斤拷龋锟酵拷锟絚y锟侥撅拷锟斤拷值锟斤拷锟斤拷呒锟斤拷叨取锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷歉锟街碉拷锟斤拷锟斤拷呒锟斤拷悖▁, y锟斤拷锟酵ｏ拷x + cx, y + cy锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角讹拷锟斤拷锟剿撅拷锟轿★拷锟斤拷锟轿碉拷锟斤拷锟较斤拷通锟斤拷锟斤拷锟絇atBlt锟睫改碉拷锟斤拷锟斤拷锟斤拷锟较斤拷锟津超筹拷锟剿撅拷锟轿的凤拷围锟斤拷锟斤拷锟斤拷映锟斤拷模式锟斤拷cx锟斤拷cy锟斤拷锟斤拷锟侥凤拷锟脚ｏ拷锟斤拷锟斤拷锟斤拷锟较角的碉拷应为锟斤拷x, y锟斤拷锟斤拷锟斤拷x, y + cy锟斤拷锟斤拷锟斤拷x + cx, y锟斤拷锟斤拷锟竭ｏ拷x + cx, y + cy锟斤拷锟斤拷
锟斤拷锟斤拷锟組M_LOENGLISH锟借定锟斤拷映锟斤拷模式锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷锟斤拷锟较角碉拷一小锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷使锟斤拷PatBlt锟斤拷锟斤拷锟斤拷锟斤拷使锟斤拷
PatBlt (hdc, 0, 0, 100, -100, dwROP) ;
锟斤拷
PatBlt (hdc, 0, -100, 100, 100, dwROP) ;
锟斤拷
PatBlt (hdc, 100, 0, -100, -100, dwROP) ;
锟斤拷
PatBlt (hdc, 100, -100, -100, 100, dwROP) ;
锟斤拷PatBlt锟借定锟斤拷确锟斤拷锟斤拷锟斤拷锟斤拷锟阶的凤拷锟斤拷锟角斤拷x锟斤拷y锟斤拷为锟斤拷锟斤拷锟斤拷锟较角★拷锟斤拷锟接筹拷锟侥Ｊ斤拷锟斤拷锟統锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟较撅拷锟斤拷锟斤拷示锟斤拷锟斤拷锟接ｏ拷锟斤拷么锟斤拷使锟矫革拷锟斤拷cy锟斤拷锟斤拷锟斤拷锟斤拷锟接筹拷锟侥Ｊ斤拷锟斤拷锟絰锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟接ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟矫ｏ拷锟斤拷锟斤拷锟斤拷要使锟矫革拷锟斤拷cx锟斤拷锟斤拷锟斤拷
GDI锟斤拷锟斤拷图锟斤拷锟�
锟斤拷
锟斤拷锟节憋拷锟斤拷前锟斤拷锟斤拷锟结到锟斤拷Windows锟斤拷1.0锟斤拷始锟斤拷支援GDI锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟轿拷锟絎indows 3.0锟斤拷锟斤拷锟斤拷装锟斤拷锟睫关碉拷锟斤拷图锟斤拷GDI锟斤拷锟斤拷图锟斤拷锟斤拷锟绞币诧拷锟轿帮拷锟斤拷锟截碉拷锟斤拷图锟斤拷锟斤拷锟斤拷DDB锟斤拷锟揭撅拷锟斤拷锟斤拷全锟斤拷锟斤拷锟斤拷device-dependent bitmap锟斤拷全锟侥ｏ拷锟斤拷为锟斤拷锟斤拷锟斤拷去锟斤拷device-independent bitmap锟斤拷锟狡★拷锟斤拷写DDB锟斤拷锟揭恍╋拷锟斤拷锟轿拷锟斤拷呛锟斤拷锟斤拷装锟斤拷锟斤拷锟紻IB锟斤拷锟斤拷锟斤拷锟斤拷
锟皆筹拷式写锟斤拷锟斤拷锟斤拷说锟斤拷锟街达拷锟斤拷锟斤拷植锟酵拷锟教拷牡锟斤拷锟酵硷拷锟絎indows 3.0锟斤拷始锟酵革拷为锟斤拷锟揭★拷锟斤拷锟斤拷锟叫撅拷锟斤拷锟絎indows锟斤拷式写锟斤拷锟竭讹拷锟斤拷锟斤拷准确锟斤拷锟斤拷锟斤拷DIB锟斤拷DDB之锟斤拷墓锟较碉拷锟斤拷锟斤拷锟斤拷卤锟斤拷锟斤拷Windows 3.0锟芥本锟斤拷锟杰筹拷锟斤拷锟斤拷锟斤拷锟斤拷猓╋拷锟斤拷锟饺伙拷锟紻IB锟斤拷DDB锟斤拷锟斤拷锟洁方锟斤拷锟斤拷锟斤拷氐模锟紻IB锟斤拷DDB锟斤拷锟洁互转锟斤拷锟斤拷锟斤拷锟斤拷转锟斤拷锟斤拷锟斤拷锟叫会丢失一些锟斤拷讯锟斤拷锟斤拷然锟斤拷DIB锟斤拷DDB锟角诧拷锟斤拷锟斤拷锟洁互锟芥换锟侥ｏ拷锟斤拷锟揭诧拷锟杰简单碉拷选锟斤拷一锟街凤拷锟斤拷锟斤拷锟斤拷示同一锟斤拷锟斤拷锟斤拷锟斤拷锟较★拷
锟斤拷锟斤拷锟斤拷锟斤拷芗锟斤拷锟剿礑IB一锟斤拷锟斤拷锟斤拷锟紻DB锟斤拷锟斤拷锟斤拷锟斤拷突锟杰凤拷锟斤拷锟剿★拷锟斤拷锟斤拷实锟斤拷锟斤拷锟斤拷锟斤拷耍锟紻DB锟斤拷锟斤拷Windows锟叫帮拷锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷色锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟节猴拷锟斤拷式执锟叫憋拷锟街好伙拷时锟斤拷
锟斤拷锟斤拷DDB
锟斤拷
DDB锟斤拷Windows图锟斤拷装锟矫斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷之一锟斤拷锟斤拷锟叫伙拷锟斤拷锟斤拷锟斤拷图锟绞★拷锟斤拷刷锟斤拷锟斤拷锟藉、metafile锟酵碉拷色锟教ｏ拷锟斤拷锟斤拷些图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟紾DI模锟斤拷锟节诧拷锟斤拷锟斤拷应锟矫筹拷式锟斤拷锟斤拷锟皆达拷锟斤拷锟斤拷锟街的凤拷式锟斤拷锟矫★拷锟斤拷锟斤拷锟皆斤拷DDB锟斤拷锟脚达拷锟斤拷锟斤拷一锟斤拷HBITMAP锟斤拷锟斤拷handle to a bitmap锟斤拷锟斤拷锟斤拷图锟斤拷锟脚★拷锟斤拷锟斤拷态锟侥憋拷锟斤拷锟叫ｏ拷锟斤拷锟界：
HBITMAP hBitmap ;
然锟斤拷通锟斤拷锟斤拷锟斤拷DDB锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷式锟斤拷锟斤拷么锟斤拷牛锟斤拷锟斤拷纾篊reateBitmap锟斤拷锟斤拷些锟斤拷式锟斤拷锟矫诧拷锟斤拷始锟斤拷GDI锟斤拷锟斤拷锟斤拷锟叫碉拷一些锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟届兜锟斤拷锟酵硷拷锟斤拷锟窖讹拷锟斤拷约锟绞碉拷实锟斤拷锟酵嘉辉拷锟斤拷锟窖讹拷锟接︼拷贸锟绞斤拷锟斤拷锟街憋拷哟锟饺★拷锟轿硷拷锟斤拷锟藉。锟斤拷锟斤拷图锟斤拷装锟斤拷锟斤拷锟斤拷锟睫关★拷锟斤拷锟斤拷式使锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷幔拷锟揭拷锟斤拷锟斤拷渭锟斤拷锟斤拷澹�
DeleteObject (hBitmap) ;
锟斤拷锟斤拷锟绞街达拷锟绞憋拷锟绞癸拷锟斤拷锟紻DB锟斤拷锟斤拷么锟斤拷式锟斤拷止时锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥诧拷锟斤拷锟斤拷
CreateBitmap锟斤拷式锟矫凤拷锟斤拷锟铰ｏ拷
hBitmap = CreateBitmap (cx, cy, cPlanes, cBitsPixel, bits) ;
前锟斤拷锟斤拷锟斤拷锟斤拷锟角碉拷锟斤拷图锟侥匡拷锟饺和高度ｏ拷锟斤拷图锟斤拷为锟斤拷位锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷色锟斤拷锟斤拷锟侥匡拷锟斤拷锟斤拷母锟斤拷锟斤拷锟斤拷锟矫客硷拷氐锟轿辉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷指锟斤拷一锟斤拷锟斤拷锟截讹拷锟斤拷色锟斤拷式锟斤拷诺锟轿辉拷锟斤拷械锟街革拷辏拷锟斤拷锟斤拷诖锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷始锟斤拷锟斤拷DDB锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷械锟酵硷拷锟斤拷锟斤拷锟绞硷拷锟紻DB锟斤拷锟斤拷锟皆斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷为NULL锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角匡拷锟斤拷锟借定锟斤拷DDB锟斤拷图锟截碉拷锟斤拷锟捷★拷
使锟矫此猴拷式时锟斤拷Windows也锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷喜锟斤拷锟斤拷锟截讹拷锟斤拷态GDI锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷纾拷锟斤拷锟斤拷锟较ｏ拷锟斤拷锟斤拷锟酵硷拷锟�7锟斤拷图锟截★拷锟斤拷9锟斤拷图锟截★拷5锟斤拷?色位元锟芥，锟斤拷锟斤拷每锟斤拷图锟斤拷占3位元锟斤拷锟斤拷只锟斤拷要执锟斤拷锟斤拷锟斤拷牟锟斤拷锟斤拷锟�
hBitmap = CreateBitmap (7, 9, 5, 3, NULL) ;
锟斤拷时Windows锟斤拷煤酶锟斤拷锟揭伙拷锟斤拷锟叫э拷牡锟斤拷锟酵硷拷锟斤拷拧锟�
锟节此猴拷式锟斤拷锟斤拷锟节间，Windows锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟捷革拷锟斤拷式锟斤拷锟斤拷讯锟斤拷锟斤拷为图锟斤拷位元锟斤拷锟矫硷拷锟斤拷锟藉。锟斤拷锟皆的硷拷锟斤拷锟角此碉拷锟斤拷图锟斤拷要7锟斤拷9锟斤拷5锟斤拷3锟斤拷锟斤拷945位元锟斤拷锟斤拷锟斤拷要锟斤拷118锟斤拷位元锟介还锟洁几锟斤拷位元锟斤拷
然锟斤拷锟斤拷Windows为锟斤拷锟斤拷图锟斤拷锟矫好硷拷锟斤拷锟斤拷锟斤拷锟结，每锟斤拷图锟截讹拷占锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿辉拷椋拷锟斤拷锟�
iWidthBytes = 2 * ((cx * cBitsPixel + 15) / 16) ;
锟斤拷锟斤拷C锟斤拷式写锟斤拷锟竭革拷锟斤拷锟斤拷锟叫达拷桑锟�
iWidthBytes = (cx * cBitsPixel + 15) & ~15) >> 3 ;
锟斤拷耍锟轿狣DB锟斤拷锟矫的硷拷锟斤拷锟斤拷锟斤拷牵锟�
iBitmapBytes = cy * cPlanes * iWidthBytes ;
锟斤拷锟斤拷锟叫ｏ拷iWidthBytes占4位元锟介，iBitmapBytes占180位元锟介。
锟斤拷锟节ｏ拷知锟斤拷一锟脚碉拷锟斤拷图锟斤拷5锟斤拷锟斤拷色位元锟芥，每图锟斤拷占3锟斤拷锟斤拷色位锟斤拷什么锟斤拷锟斤拷锟斤拷锟斤拷锟角硷拷锟斤拷锟剿ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟杰帮拷锟斤拷锟斤拷锟斤拷一锟斤拷习锟斤拷锟斤拷业锟斤拷锟斤拷然锟斤拷锟斤拷GDI锟节诧拷锟斤拷锟斤拷锟斤拷些锟斤拷锟斤拷锟藉，锟斤拷锟斤拷锟斤拷锟斤拷些锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟结构锟斤拷锟斤拷锟捷ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟脚碉拷锟斤拷图锟斤拷全锟斤拷锟斤拷锟斤拷锟轿猴拷锟斤拷锟矫碉拷锟斤拷锟斤拷锟斤拷锟斤拷
实锟斤拷锟较ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷态锟侥诧拷锟斤拷锟斤拷锟斤拷锟斤拷CreateBitmap锟斤拷
- cPlanes锟斤拷cBitsPixel锟斤拷锟斤拷锟�1锟斤拷锟斤拷示锟斤拷色锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷
锟斤拷 -
cPlanes锟斤拷cBitsPixel锟斤拷锟斤拷锟侥筹拷锟斤拷囟锟阶帮拷锟斤拷锟斤拷莸锟街碉拷锟斤拷锟斤拷锟斤拷锟绞癸拷锟絇LANES锟斤拷BITSPIXEL锟斤拷锟斤拷锟斤拷锟斤拷GetDeviceCaps锟斤拷式锟斤拷谩锟�
锟斤拷
锟斤拷锟斤拷实锟斤拷锟斤拷锟斤拷拢锟斤拷锟街伙拷锟斤拷诘锟揭伙拷锟斤拷锟斤拷锟铰猴拷锟斤拷CreateBitmap锟斤拷锟斤拷於第讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟紺reateCompatibleBitmap锟斤拷锟斤拷锟斤拷锟解：
hBitmap = CreateCompatibleBitmap (hdc, cx, cy) ;
锟剿猴拷式锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟借备锟斤拷锟捷的碉拷锟斤拷图锟斤拷锟斤拷锟借备锟斤拷装锟斤拷锟斤拷锟捷达拷锟斤拷锟缴碉拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷CreateCompatibleBitmap锟斤拷装锟斤拷锟斤拷锟捷达拷锟斤拷锟斤拷锟斤拷锟紾etDeviceCaps锟斤拷讯锟斤拷然锟结将锟斤拷锟斤拷讯锟斤拷锟捷革拷CreateBitmap锟斤拷锟斤拷锟斤拷锟斤拷实锟绞碉拷装锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷同锟侥硷拷锟斤拷锟斤拷锟斤拷织之锟解，DDB锟斤拷装锟斤拷锟斤拷锟斤拷没锟斤拷锟斤拷锟斤拷锟斤拷系锟斤拷
CreateDiscardableBitmap锟斤拷式锟斤拷CreateCompatibleBitmap锟侥诧拷锟斤拷锟斤拷同锟斤拷锟斤拷锟揭癸拷锟斤拷锟斤拷锟斤拷同锟斤拷锟斤拷锟斤拷锟节碉拷Windows锟芥本锟叫ｏ拷CreateDiscardableBitmap锟斤拷锟斤拷锟侥碉拷锟斤拷图锟斤拷锟斤拷锟节硷拷锟斤拷锟斤拷锟斤拷锟绞憋拷锟絎indows锟斤拷锟斤拷蛹锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷然锟斤拷锟绞斤拷锟斤拷亟锟斤拷锟斤拷锟酵硷拷锟斤拷稀锟�
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷式锟斤拷CreateBitmapIndirect锟斤拷
hBitmap CreateBitmapIndirect (&bitmap) ;
锟斤拷锟斤拷bitmap锟斤拷BITMAP锟斤拷态锟侥结构锟斤拷BITMAP锟结构锟斤拷锟斤拷锟斤拷锟铰ｏ拷
typedef struct _tagBITMAP
{
LONG bmType ; // set to 0
LONG bmWidth ; // width in pixels
LONG bmHeight ; // height in pixels
LONG bmWidthBytes ; // width of row in bytes
WORD bmPlanes ; // number of color planes
WORD bmBitsPixel ; // number of bits per pixel
LPVOID bmBits ; // pointer to pixel bits
}
BITMAP, * PBITMAP ;
锟节猴拷锟斤拷CreateBitmapIndirect锟斤拷式时锟斤拷锟斤拷锟斤拷锟斤拷要锟借定bmWidthBytes锟斤拷位锟斤拷Windows锟斤拷为锟斤拷锟斤拷锟姐，锟斤拷也锟斤拷锟皆斤拷bmBits锟斤拷位锟借定为NULL锟斤拷锟斤拷锟斤拷锟借定为锟斤拷始锟斤拷锟斤拷锟斤拷图时锟矫碉拷图锟斤拷位元位址锟斤拷
GetObject锟斤拷式锟斤拷也使锟斤拷BITMAP锟结构锟斤拷锟斤拷锟饺讹拷锟斤拷一锟斤拷BITMAP锟斤拷态锟侥结构锟斤拷
BITMAP bitmap ;
锟斤拷锟斤拷锟叫猴拷式锟斤拷锟铰ｏ拷
GetObject (hBitmap, sizeof (BITMAP), &bitmap) ;
Windows锟斤拷锟矫碉拷锟斤拷图锟斤拷讯锟斤拷锟紹ITMAP锟结构锟斤拷锟斤拷位锟斤拷锟斤拷锟斤拷锟斤拷bmBits锟斤拷位锟斤拷锟絅ULL锟斤拷
锟斤拷锟斤拷锟斤拷应锟斤拷锟斤拷DeleteObject锟斤拷锟斤拷锟斤拷锟绞斤拷诮锟斤拷锟斤拷锟斤拷锟斤拷械锟斤拷锟酵硷拷锟�
锟斤拷锟斤拷图位元
锟斤拷
锟斤拷CreateBitmap锟斤拷CreateBitmapIndirect锟斤拷锟斤拷锟斤拷锟借备锟斤拷锟紾DI锟斤拷锟斤拷图锟斤拷锟绞憋拷锟斤拷锟斤拷锟斤拷愿锟斤拷锟斤拷锟酵纪硷拷锟轿辉革拷锟揭伙拷锟街革拷辍ｏ拷锟斤拷锟斤拷锟揭诧拷锟斤拷锟斤拷玫锟斤拷锟酵嘉拷锟轿达拷锟绞硷拷锟斤拷锟阶刺拷锟斤拷诮锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷幔琖indows锟斤拷锟结供锟斤拷锟斤拷锟斤拷式锟斤拷锟斤拷貌锟斤拷瓒ㄍ硷拷锟轿辉拷锟�
要锟借定图锟斤拷位元锟斤拷锟斤拷锟斤拷校锟�
SetBitmapBits (hBitmap, cBytes, &bits) ;
GetBitmapBits锟斤拷式锟斤拷锟斤拷同锟斤拷锟斤法锟斤拷
GetBitmapBits (hBitmap, cBytes, &bits) ;
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷式锟叫ｏ拷cBytes指锟斤拷要锟斤拷锟狡碉拷位元锟斤拷锟斤拷锟斤拷bits锟斤拷锟斤拷锟斤拷cBytes锟斤拷小锟侥伙拷锟斤拷锟斤拷锟斤拷
DDB锟叫碉拷图锟斤拷位元锟接讹拷锟叫匡拷始锟斤拷锟叫★拷锟斤拷锟斤拷前锟斤拷说锟斤拷锟斤拷每锟叫碉拷位元锟斤拷锟斤拷锟斤拷锟斤拷偶锟斤拷锟斤拷锟斤拷锟斤拷之锟解，没什么锟斤拷说锟斤拷锟斤拷锟剿★拷锟斤拷锟斤拷锟斤拷锟酵硷拷堑锟缴拷模锟揭诧拷锟斤拷锟剿碉拷锟斤拷锟�1锟斤拷位元锟芥并锟斤拷每锟斤拷图锟斤拷占1位元锟斤拷锟斤拷每锟斤拷图锟截诧拷锟斤拷1锟斤拷锟斤拷0锟斤拷每锟斤拷锟斤拷锟斤拷叩锟酵硷拷锟斤拷潜锟斤拷械锟揭伙拷锟轿辉拷锟斤拷锟斤拷位元锟斤拷位元锟斤拷锟斤拷锟斤拷锟节憋拷锟铰碉拷锟斤拷锟芥讲锟斤拷锟斤拷锟斤拷锟绞撅拷锟缴獶DB之锟结，锟斤拷锟斤拷一锟斤拷锟斤拷色锟斤拷DDB锟斤拷
锟斤拷於非碉拷色锟斤拷锟斤拷图锟斤拷应锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭拷锟酵硷拷锟轿辉拷锟斤拷锟斤拷状锟斤拷锟斤拷锟斤拷锟界，锟劫讹拷锟斤拷8位锟斤拷色锟斤拷VGA锟斤拷执锟斤拷Windows锟斤拷锟斤拷锟斤拷锟皆猴拷锟斤拷CreateCompatibleBitmap锟斤拷通锟斤拷GetDeviceCaps锟斤拷锟斤拷锟杰癸拷确锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷1锟斤拷锟斤拷色位元锟斤拷锟矫客硷拷锟�8位元锟斤拷锟借备锟斤拷一锟斤拷位元锟介储锟斤拷一锟斤拷图锟截★拷锟斤拷锟斤拷图锟斤拷值0x37锟斤拷什么锟斤拷思锟截ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷某锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷什么锟斤拷色锟截ｏ拷
图锟斤拷实锟斤拷锟较诧拷锟斤拷锟芥及锟轿何固讹拷锟斤拷锟斤拷色锟斤拷锟斤拷只锟斤拷一锟斤拷值锟斤拷DDB没锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷锟斤拷墓丶锟斤拷锟届叮锟斤拷锟紻DB锟斤拷示锟斤拷萤幕锟斤拷时锟斤拷图锟截碉拷锟斤拷色锟斤拷什么锟斤拷锟斤拷锟较讹拷锟斤拷某锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷什么锟斤拷色锟截ｏ拷锟斤拷示锟斤拷图锟截斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟较的碉拷色锟教查看锟斤拷锟斤拷锟�0x37锟斤拷锟斤拷值锟斤拷锟斤拷锟斤拷RGB锟斤拷色锟叫关★拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟斤拷浴锟�
锟斤拷锟斤拷锟斤拷锟斤拷要只锟斤拷为锟斤拷锟角诧拷知锟斤拷图锟斤拷值锟侥猴拷锟藉，锟酵假讹拷锟角碉拷色DDB没锟矫★拷锟斤拷锟角斤拷锟斤拷要锟斤拷一锟斤拷锟斤拷锟角碉拷锟斤拷途锟斤拷锟斤拷一锟铰ｏ拷锟斤拷锟角斤拷锟斤拷锟斤拷SetBitmapBits锟斤拷GetBitmapBits锟斤拷式锟斤拷锟斤拷伪锟斤拷锟斤拷锟斤拷玫锟絊etDIBits锟斤拷GetDIBits锟斤拷式锟斤拷取锟斤拷锟侥★拷
锟斤拷耍锟斤拷锟斤拷锟斤拷墓锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷模锟斤拷锟揭拷锟紺reateBitmap锟斤拷CreateBitmapIndirect锟斤拷SetBitmapBits锟斤拷锟借定锟斤拷色DDB锟斤拷位元锟斤拷锟斤拷只锟杰帮拷全锟斤拷使锟斤拷锟斤拷些锟斤拷式锟斤拷锟借定锟斤拷色DDB锟斤拷位元锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷诤锟斤拷锟紾etBitmapBits锟节间，锟斤拷锟斤拷锟斤拷锟斤拷同锟斤拷式锟斤拷DDB锟叫伙拷锟轿辉拷锟斤拷锟矫达拷锟叫╋拷锟斤拷锟斤拷锟斤拷狻ｏ拷锟�
锟节硷拷锟斤拷之前锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷SetBitmapDimensionEx锟斤拷GetBitmapDimensionEx锟斤拷式锟斤拷锟斤拷些锟斤拷式锟斤拷锟斤拷锟借定锟斤拷锟酵伙拷茫锟斤拷锟斤拷锟酵硷拷牟锟斤拷锟斤拷叽纾拷锟�0.1锟斤拷锟斤拷为锟斤拷位锟斤拷锟斤拷锟斤拷些锟斤拷讯锟斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷锟揭伙拷鸫⒋锟斤拷锟紾DI锟叫ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷魏尾锟斤拷锟斤拷锟斤拷锟街伙拷锟斤拷锟斤拷锟紻DB锟斤拷系锟斤拷一锟斤拷锟斤拷锟斤拷锟竭达拷锟绞讹拷锟�
锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷
锟斤拷
锟斤拷锟角憋拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟角硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷★拷锟斤拷锟斤拷要锟矫硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷GDI锟斤拷锟斤拷图锟斤拷锟斤拷锟�
通锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷指锟斤拷锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷锟借备锟斤拷锟斤拷锟斤拷锟斤拷讯锟斤拷示锟斤拷锟斤拷锟斤拷印锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷式锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷只位於硷拷锟斤拷锟斤拷锟叫ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷璞革拷锟斤拷锟斤拷锟斤拷锟剿碉拷锟街革拷锟斤拷锟斤拷锟斤拷锟斤拷璞革拷锟斤拷锟斤拷荨锟斤拷锟�
要锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷实锟斤拷锟借备锟斤拷装锟斤拷锟斤拷锟捷达拷锟脚★拷锟斤拷锟斤拷锟絟dc锟斤拷锟斤拷么锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷ｏ拷
hdcMem = CreateCompatibleDC (hdc) ;
通锟斤拷锟斤拷锟斤拷式锟侥猴拷锟叫憋拷锟斤拷锟斤拷虻ァ锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷为NULL锟斤拷锟斤拷么Windows锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷讯锟斤拷示锟斤拷锟斤拷锟斤拷锟捷的硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷★拷应锟矫筹拷式锟斤拷锟斤拷锟斤拷锟轿何硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷锟秸讹拷通锟斤拷锟斤拷锟斤拷DeleteDC锟斤拷锟斤拷锟斤拷锟�
锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷实锟斤拷位元映锟斤拷锟借备锟斤拷同锟斤拷锟斤拷示平锟芥。锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞酒斤拷锟角筹拷小锟斤拷锟斤拷色锟斤拷1图锟截匡拷锟斤拷1图锟截高★拷锟斤拷示平锟斤拷锟斤拷堑锟斤拷锟�1位元锟斤拷
锟斤拷然锟斤拷锟斤拷1位元锟斤拷锟斤拷示平锟芥，锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷墓锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷示平锟芥。锟斤拷锟斤拷锟斤拷通锟斤拷锟斤拷一锟斤拷GDI锟斤拷锟斤拷图锟斤拷锟窖★拷锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟筋工锟斤拷锟斤拷锟斤拷锟界：
SelectObject (hdcMem, hBitmap) ;
锟剿猴拷式锟斤拷锟斤拷锟斤拷锟斤拷锟绞★拷锟斤拷刷锟斤拷锟斤拷锟藉、锟斤拷锟斤拷偷锟缴拷锟窖★拷锟阶帮拷锟斤拷锟斤拷莸暮锟绞斤拷锟酵拷锟饺伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟窖★拷锟斤拷锟斤拷锟酵硷拷锟轿ㄒ灰伙拷锟阶帮拷锟斤拷锟斤拷锟斤拷锟教拷锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷也锟斤拷锟皆斤拷锟斤拷锟斤拷GDI锟斤拷锟窖★拷锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷荨锟斤拷锟�
只锟斤拷选锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷的碉拷锟斤拷图锟角碉拷色锟侥ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷璞革拷锟斤拷锟酵拷锟缴拷锟斤拷锟街憋拷锟絊electObject锟脚伙拷锟斤拷锟斤拷锟矫★拷锟斤拷也锟角斤拷锟斤拷锟斤拷锟斤拷锟紻DB锟斤拷锟斤拷锟斤拷锟斤拷5锟斤拷位元锟芥，锟斤拷每图锟斤拷3位元锟斤拷没锟斤拷锟矫碉拷原锟斤拷
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絊electObject锟斤拷锟斤拷锟斤拷锟结，DDB锟斤拷锟角硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷碉拷锟斤拷示平锟芥。锟斤拷锟斤拷实锟斤拷装锟斤拷锟斤拷锟捷碉拷每锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟届都锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷荨锟斤拷锟斤拷纾拷锟斤拷锟斤拷GDI锟斤拷图锟斤拷式锟节硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟叫伙拷图锟斤拷锟斤拷么图锟今将伙拷锟节碉拷锟斤拷图锟较★拷锟斤拷锟角非筹拷锟斤拷锟矫的★拷锟斤拷锟斤拷锟皆斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷为锟斤拷源锟斤拷锟斤拷锟斤拷讯装锟斤拷锟斤拷锟斤拷锟斤拷为目锟斤拷锟斤拷锟斤拷锟斤拷BitBlt锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞撅拷锟斤拷匣锟斤拷频锟斤拷锟酵硷拷姆锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷讯装锟斤拷锟斤拷锟斤拷锟斤拷为锟斤拷源锟斤拷锟窖硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷为目锟侥ｏ拷锟斤拷么锟斤拷锟斤拷BitBlt锟缴斤拷萤幕锟较碉拷一些锟斤拷锟捷革拷锟狡革拷锟斤拷锟斤拷图锟斤拷锟斤拷锟角斤拷锟斤拷锟斤拷锟斤拷些锟斤拷锟角匡拷锟杰的★拷
锟斤拷锟斤拷锟斤拷锟酵硷拷锟皆�
锟斤拷
锟斤拷锟剿革拷锟街革拷锟斤拷锟侥碉拷锟斤拷图锟斤拷锟斤拷锟斤拷式锟斤拷锟解，锟斤拷锟紾DI锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷诺锟斤拷锟揭伙拷锟斤拷锟斤拷锟斤拷锟斤拷呛锟斤拷锟絃oadBitmap锟斤拷式锟斤拷使锟矫此猴拷式锟斤拷锟斤拷锟斤拷锟截碉拷锟侥碉拷锟斤拷图锟斤拷式锟斤拷锟节筹拷式锟叫ｏ拷锟斤拷只锟斤拷虻サ匕锟斤拷锟皆达拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷虢拷锟酵际撅拷锟斤拷呋锟斤拷锟斤拷伪锟侥凤拷锟斤拷锟斤拷锟狡★拷LoadBitmap锟斤拷式锟斤拷锟斤法锟斤拷LoadIcon锟斤拷LoadCursor锟斤拷同锟斤拷
hBitmap = LoadBitmap (hInstance, szBitmapName) ;
锟斤拷锟斤拷锟斤拷锟斤拷锟较低筹拷锟斤拷锟酵硷拷锟斤拷锟矫达拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟斤拷锟轿狽ULL锟斤拷锟斤拷些锟斤拷同锟侥碉拷锟斤拷图锟斤拷Windows锟接撅拷锟斤拷锟芥（锟斤拷锟斤拷乇辗锟斤拷锟酵癸拷选锟斤拷牵锟斤拷锟揭恍★拷锟斤拷郑锟斤拷锟斤拷堑锟绞讹拷锟斤拷锟斤拷锟斤拷锟侥窸BM锟斤拷始锟斤拷锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷锟绞讹拷锟斤拷侄锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟较碉拷锟斤拷锟矫达拷诙锟斤拷锟斤拷锟斤拷锟斤拷涂锟斤拷锟绞癸拷锟組AKEINTRESOURCE锟睫硷拷锟斤拷锟斤拷LoadBitmap锟斤拷锟斤拷锟斤拷锟斤拷械锟斤拷锟酵硷拷锟斤拷锟接︼拷锟紻eleteObject锟斤拷锟斤拷锟�
锟斤拷锟斤拷锟斤拷锟酵硷拷锟皆达拷堑锟缴拷模锟斤拷锟矫达拷锟絃oadBitmap锟斤拷锟截的达拷锟脚斤拷指锟斤拷一锟斤拷锟斤拷色锟侥碉拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷源锟斤拷锟角碉拷色锟斤拷锟斤拷么锟斤拷LoadBitmap锟斤拷锟截的达拷锟脚斤拷指锟斤拷一锟斤拷GDI锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷执锟叫筹拷式锟斤拷锟斤拷讯锟斤拷示锟斤拷锟斤拷锟斤拷同锟斤拷色锟斤拷锟斤拷织锟斤拷锟斤拷耍锟斤拷锟斤拷锟酵际硷拷锟斤拷锟斤拷锟窖讹拷锟绞撅拷锟斤拷锟斤拷荩锟斤拷锟斤拷锟斤拷锟斤拷锟窖★拷锟斤拷锟斤拷锟窖讹拷锟绞撅拷锟斤拷锟斤拷莸募锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟斤拷小锟斤拷锟斤拷锟絃oadBitmap锟斤拷锟斤拷锟结，锟酵诧拷锟矫碉拷锟斤拷锟轿猴拷色锟斤拷转锟斤拷锟斤拷锟斤拷锟斤拷锟剿★拷锟斤拷锟斤拷一锟斤拷锟叫ｏ拷锟斤拷锟角撅拷知锟斤拷LoadBitmap锟侥撅拷锟斤拷锟斤拷锟斤拷锟斤拷式锟剿★拷
锟斤拷式14-3锟斤拷示锟斤拷BRICKS1锟斤拷式示锟斤拷锟斤拷锟斤拷锟斤拷一小锟脚碉拷色锟斤拷锟斤拷图锟斤拷源锟侥凤拷锟斤拷锟斤拷锟剿碉拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷砖锟介，锟斤拷锟斤拷锟斤拷水平锟酵达拷直锟截革拷时锟斤拷锟斤拷锟斤拷砖墙锟斤拷锟斤拷锟剿★拷
锟斤拷式14-3 BRICKS1
BRICKS1.C
/*--------------------------------------------------------------------------
BRICKS1.C -- LoadBitmap Demonstration
(c) Charles Petzold, 1998
----------------------------------------------------------------------------*/
#include <windows.h>
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName [] = TEXT ("Bricks1") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow ( szAppName, TEXT ("LoadBitmap Demo"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}
LRESULT CALLBACK WndProc ( HWND hwnd, UINT message, WPARAM wParam,LPARAM lParam)
{
static HBITMAP hBitmap ;
static int cxClient, cyClient, cxSource, cySource ;
BITMAP bitmap ;
HDC hdc, hdcMem ;
HINSTANCE hInstance ;
int x, y ;
PAINTSTRUCT ps ;
switch (message)
{
case WM_CREATE:
hInstance = ((LPCREATESTRUCT) lParam)->hInstance ;
hBitmap = LoadBitmap (hInstance, TEXT ("Bricks")) ;
GetObject (hBitmap, sizeof (BITMAP), &bitmap) ;
cxSource = bitmap.bmWidth ;
cySource = bitmap.bmHeight ;
return 0 ;
case WM_SIZE:
cxClient = LOWORD (lParam) ;
cyClient = HIWORD (lParam) ;
return 0 ;
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ;
hdcMem = CreateCompatibleDC (hdc) ;
SelectObject (hdcMem, hBitmap) ;
for (y = 0 ; y < cyClient ; y += cySource)
for (x = 0 ; x < cxClient ; x += cxSource)
{
BitBlt (hdc, x, y, cxSource, cySource, hdcMem, 0, 0, SRCCOPY) ;
}
DeleteDC (hdcMem) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
DeleteObject (hBitmap) ;
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
BRICKS1.RC 锟斤拷摘录锟斤拷 //Microsoft Developer Studio generated resource script. #include "resource.h" #include "afxres.h" ///////////////////////////////////////////////////////////////////////////// // Bitmap BRICKS BITMAP DISCARDABLE "Bricks.bmp"
| BRICKS.BMP |
锟斤拷
锟斤拷Visual C++ Developer Studio锟叫斤拷锟斤拷锟斤拷锟斤拷图时锟斤拷应指锟斤拷锟斤拷锟斤拷图锟侥高度和匡拷锟饺讹拷锟斤拷8锟斤拷图锟截ｏ拷锟角碉拷色锟斤拷锟斤拷锟斤拷锟角★拷Bricks锟斤拷锟斤拷BRICKS1锟斤拷式锟斤拷WM_CREATE讯息锟斤拷锟斤拷锟节硷拷锟斤拷锟斤拷锟剿碉拷锟斤拷图锟斤拷锟斤拷GetObject锟斤拷确锟斤拷锟斤拷锟斤拷图锟斤拷图锟截尺寸（锟皆便当锟斤拷锟斤拷图锟斤拷锟斤拷8图锟截硷拷锟斤拷时锟斤拷式锟斤拷锟杰硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟结，BRICKS1锟斤拷锟斤拷WM_DESTROY讯息锟斤拷删锟斤拷锟剿碉拷锟斤拷图锟斤拷
锟斤拷WM_PAINT讯息锟斤拷锟斤拷锟节间，BRICKS1锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷锟捷的硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷ｏ拷锟斤拷锟斤拷选锟斤拷锟剿碉拷锟斤拷图锟斤拷然锟斤拷锟角从硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷碉拷锟斤拷示锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷一系锟叫碉拷BitBlt锟斤拷式锟斤拷锟叫ｏ拷锟斤拷删锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷★拷图14-3锟斤拷示锟剿筹拷式锟斤拷执锟叫斤拷锟斤拷锟�
顺锟斤拷说一锟铰ｏ拷Developer Studio锟斤拷锟斤拷锟斤拷BRICKS.BMP锟斤拷锟斤拷锟斤拷一锟斤拷装锟斤拷锟睫关碉拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷Developer Studio锟节斤拷锟斤拷一锟斤拷锟斤拷色锟斤拷BRICKS.BMP锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆硷拷选锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷锟揭憋拷证一锟叫癸拷锟斤拷锟斤拷锟斤拷锟斤拷
锟斤拷锟角匡拷锟斤拷DIB锟斤拷转锟斤拷锟斤拷锟斤拷锟斤拷讯锟斤拷示锟斤拷锟斤拷锟捷碉拷GDI锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷墙锟斤拷锟斤拷锟揭伙拷驴锟斤拷锟斤拷锟斤拷锟斤拷锟轿诧拷锟斤拷锟侥★拷
锟斤拷
| 图14-3 BRICKS1锟斤拷萤幕锟斤拷示 |
锟斤拷色锟斤拷锟斤拷图锟斤拷式
锟斤拷
锟斤拷锟斤拷锟斤拷诖锟斤拷锟叫★拷榈ド硷拷锟斤拷锟矫达拷锟斤拷锟斤拷匕锟斤拷锟斤拷堑锟斤拷锟斤拷锟皆达拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷色锟斤拷锟斤拷图锟斤拷锟斤拷锟酵拷锟斤拷锟缴辉拷母锟绞斤拷锟皆硷拷一些锟斤拷锟斤拷锟揭硷拷锟斤拷锟斤拷全锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟斤拷图锟斤拷锟叫凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷纾拷俣锟斤拷锟揭拷锟斤拷锟斤拷锟酵硷拷锟绞撅拷牡锟斤拷锟酵硷拷锟�
锟斤拷
锟斤拷锟斤拷写锟斤拷一系锟叫碉拷位元锟斤拷0锟斤拷锟斤拷锟斤拷色锟斤拷1锟斤拷锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷些位元直锟接讹拷应锟斤拷锟斤拷瘛４锟斤拷锟斤拷叶锟斤拷锟叫┪辉拷锟斤拷锟斤拷芨锟矫�8位元锟斤拷锟斤拷锟斤拷一锟斤拷十锟斤拷锟斤拷位元锟斤拷位元锟斤拷值锟斤拷锟斤拷锟斤拷锟斤拷锟酵硷拷目锟斤拷炔锟斤拷锟�16锟侥憋拷锟斤拷锟斤拷锟斤拷位元锟斤拷锟斤拷冶锟斤拷锟斤拷锟斤拷锟戒，锟皆得碉拷偶锟斤拷锟斤拷位元锟介：
0 1 0 1 0 0 0 1 0 1 1 1 0 1 1 1 0 0 0 1 = 51 77 10 00 0 1 0 1 0 1 1 1 0 1 1 1 0 1 1 1 0 1 0 1 = 57 77 50 00 0 0 0 1 0 0 1 1 0 1 1 1 0 1 1 1 0 1 0 1 = 13 77 50 00 0 1 0 1 0 1 1 1 0 1 1 1 0 1 1 1 0 1 0 1 = 57 77 50 00 0 1 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 = 51 11 10 00
图锟截匡拷为20锟斤拷扫锟斤拷锟竭革拷为5锟斤拷位元锟斤拷锟轿�4锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷瓒拷说锟斤拷锟酵硷拷锟紹ITMAP锟结构锟斤拷
static BITMAP bitmap = { 0, 20, 5, 4, 1, 1 } ;
锟斤拷锟揭匡拷锟皆斤拷位元锟斤拷锟斤拷锟斤拷BYTE锟斤拷锟斤拷锟叫ｏ拷
static BYTE bits [] = { 0x51, 0x77, 0x10, 0x00,
0x57, 0x77, 0x50, 0x00,
0x13, 0x77, 0x50, 0x00,
0x57, 0x77, 0x50, 0x00,
0x51, 0x11, 0x10, 0x00 } ;
锟斤拷CreateBitmapIndirect锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷要锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
bitmap.bmBits = (PSTR) bits ; hBitmap = CreateBitmapIndirect (&bitmap) ;
锟斤拷一锟街凤拷锟斤拷锟角ｏ拷
hBitmap = CreateBitmapIndirect (&bitmap) ; SetBitmapBits (hBitmap, sizeof bits, bits) ;
锟斤拷也锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷
hBitmap = CreateBitmap (20, 5, 1, 1, bits) ;
锟节筹拷式14-4锟斤拷示锟斤拷BRICKS2锟斤拷式锟斤拷锟矫此硷拷锟斤拷直锟接斤拷锟斤拷锟斤拷砖锟斤拷锟斤拷锟酵硷拷锟斤拷锟矫伙拷锟绞癸拷锟斤拷锟皆达拷锟�
锟斤拷式14-4 BRICKS2
BRICKS2.C
/*--------------------------------------------------------------------------
BRICKS2.C -- CreateBitmap Demonstration
(c) Charles Petzold, 1998
---------------------------------------------------------------------------*/
#include <windows.h>
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName [] = TEXT ("Bricks2") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox ( NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, TEXT ("CreateBitmap Demo"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}
LRESULT CALLBACK WndProc ( HWND hwnd, UINT message, WPARAM wParam,LPARAM lParam)
{
static BITMA Pbitmap = { 0, 8, 8, 2, 1, 1 } ;
static BYTE bits [8][2]={ 0xFF, 0, 0x0C, 0, 0x0C, 0, 0x0C, 0,
0xFF, 0, 0xC0, 0, 0xC0, 0, 0xC0, 0 } ;
static HBITMAP hBitmap ;
static int cxClient, cyClient, cxSource, cySource ;
HDC hdc, hdcMem ;
int x, y ;
PAINTSTRUCT ps ;
switch (message)
{
case WM_CREATE:
bitmap.bmBits = bits ;
hBitmap = CreateBitmapIndirect (&bitmap) ;
cxSource = bitmap.bmWidth ;
cySource = bitmap.bmHeight ;
return 0 ;
case WM_SIZE:
cxClient = LOWORD (lParam) ;
cyClient = HIWORD (lParam) ;
return 0 ;
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ;
hdcMem = CreateCompatibleDC (hdc) ;
SelectObject (hdcMem, hBitmap) ;
for (y = 0 ; y < cyClient ; y += cySource)
for (x = 0 ; x < cxClient ; x += cxSource)
{
BitBlt (hdc, x, y, cxSource, cySource, hdcMem, 0, 0, SRCCOPY) ;
}
DeleteDC (hdcMem) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
DeleteObject (hBitmap) ;
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
锟斤拷锟斤拷锟皆筹拷锟斤拷一锟斤拷锟斤拷锟缴拷锟斤拷锟酵硷拷锟斤拷频锟斤拷锟斤拷锟斤拷锟斤拷锟界，锟斤拷锟斤拷锟斤拷锟斤拷锟窖讹拷锟绞撅拷锟街达拷锟斤拷锟�256色模式锟铰ｏ拷锟斤拷么锟斤拷锟斤拷锟皆革拷锟捷憋拷14-2锟斤拷锟斤拷锟斤拷锟缴╋拷锟矫匡拷锟酵硷拷亍锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞街达拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞灸Ｊ斤拷锟绞憋拷锟斤拷顺锟绞斤拷氩伙拷锟斤拷锟斤拷谩锟斤拷锟阶帮拷锟斤拷薰胤锟绞斤拷锟斤拷锟斤拷锟缴拷锟斤拷锟酵硷拷锟揭癸拷锟斤拷锟斤拷锟斤拷锟斤拷鄣锟紻IB锟斤拷
锟斤拷锟斤拷图锟叫的伙拷刷
锟斤拷
BRICKS系锟叫碉拷锟斤拷锟斤拷一锟斤拷专锟斤拷锟斤拷BRICKS3锟斤拷锟斤拷锟绞�14-5锟斤拷示锟斤拷乍锟斤拷锟剿筹拷式锟斤拷锟斤拷锟斤拷锟杰伙拷锟斤拷锟斤拷锟街感撅拷锟斤拷锟斤拷式锟斤拷锟斤拷锟斤拷去锟斤拷锟截ｏ拷
锟斤拷式14-5 BRICKS3
BRICKS3.C
/*-------------------------------------------------------------------------
BRICKS3.C -- CreatePatternBrush Demonstration
(c) Charles Petzold, 1998
---------------------------------------------------------------------------*/
#include <windows.h>
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName [] = TEXT ("Bricks3") ;
HBITMAP hBitmap ;
HBRUSH hBrush ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;
hBitmap = LoadBitmap (hInstance, TEXT ("Bricks")) ;
hBrush = CreatePatternBrush (hBitmap) ;
DeleteObject (hBitmap) ;
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = hBrush ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox ( NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, TEXT ("CreatePatternBrush Demo"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
DeleteObject (hBrush) ;
return msg.wParam ;
}
LRESULT CALLBACK WndProc ( HWND hwnd, UINT message, WPARAM wParam,LPARAM lParam)
{
switch (message)
{
case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
BRICKS3.RC 锟斤拷摘录锟斤拷 //Microsoft Developer Studio generated resource script. #include "resource.h" #include "afxres.h" ///////////////////////////////////////////////////////////////////////////// // Bitmap BRICKS BITMAP DISCARDABLE "Bricks.bmp"
锟剿筹拷式锟斤拷BRICKS1使锟斤拷同一锟斤拷BRICKS.BMP锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟接达拷锟斤拷锟斤拷去也锟斤拷同锟斤拷
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟接达拷讯息锟斤拷锟斤拷锟斤拷式没锟叫革拷锟斤拷锟斤拷锟斤拷荨锟紹RICKS3实锟斤拷锟斤拷使锟斤拷砖锟斤拷图锟斤拷锟斤拷为锟接达拷锟斤拷鸨尘锟斤拷锟剿拷锟斤拷锟斤拷锟絎NDCLASS锟结构锟斤拷hbrBackground锟斤拷位锟叫讹拷锟藉。
锟斤拷锟斤拷锟节匡拷锟杰诧拷锟斤拷GDI锟斤拷刷锟角猴拷小锟侥碉拷锟斤拷图锟斤拷通锟斤拷锟斤拷8锟斤拷图锟截硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟絃OGBRUSH锟结构锟斤拷lbStyle锟斤拷位锟借定为BS_PATTERN锟斤拷然锟斤拷锟斤拷锟紺reatePatternBrush锟斤拷CreateBrushIndirect锟斤拷锟斤拷锟酵匡拷锟斤拷锟节碉拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷刷锟剿★拷锟剿碉拷锟斤拷图锟斤拷锟斤拷锟角匡拷锟竭革拷8锟斤拷图锟截★拷锟斤拷锟斤拷俅锟絎indows 98锟斤拷只使锟矫碉拷锟斤拷图锟斤拷锟斤拷锟较斤拷锟斤拷为锟斤拷刷锟斤拷锟斤拷Windows NT锟斤拷锟杰达拷锟斤拷锟狡ｏ拷锟斤拷锟斤拷使锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷
锟斤拷锟阶★拷锟斤拷锟剿拷偷锟斤拷锟酵硷拷锟斤拷锟紾DI锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟接︼拷锟斤拷诔锟绞斤拷锟街骨吧撅拷锟斤拷锟斤拷诔锟绞斤拷薪锟斤拷锟斤拷锟剿拷偷锟斤拷锟酵硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟捷碉拷锟斤拷图锟斤拷锟斤拷锟斤拷刷锟斤拷锟斤拷么锟斤拷锟矫伙拷刷锟斤拷图时锟斤拷Windows锟斤拷锟斤拷锟狡碉拷锟斤拷图位元锟斤拷锟斤拷刷锟斤拷锟斤拷锟狡碉拷锟斤拷锟斤拷锟节★拷锟斤拷锟斤拷CreatePatternBrush锟斤拷锟斤拷锟斤拷CreateBrushIndirect锟斤拷之锟结，锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷删锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷影锟届到锟斤拷锟绞★拷锟斤拷锟狡地ｏ拷锟斤拷也锟斤拷锟斤拷删锟斤拷锟斤拷刷锟斤拷锟斤拷锟斤拷影锟届到锟斤拷选锟斤拷锟斤拷原始锟斤拷锟斤拷图锟斤拷注锟解，BRICKS3锟节斤拷锟斤拷锟斤拷刷锟斤拷删锟斤拷锟剿碉拷锟斤拷图锟斤拷锟斤拷锟节筹拷式锟斤拷止前删锟斤拷锟剿伙拷刷锟斤拷
锟斤拷锟狡碉拷锟斤拷图
锟斤拷
锟斤拷锟接达拷锟叫伙拷图时锟斤拷锟斤拷锟斤拷锟窖撅拷锟斤拷锟斤拷锟斤拷图锟斤拷锟缴伙拷图锟斤拷源使锟矫癸拷锟剿★拷锟斤拷要锟斤拷锟饺斤拷锟斤拷锟斤拷图选锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷ｏ拷锟斤拷锟斤拷锟斤拷BitBlt锟斤拷锟斤拷StretchBlt锟斤拷锟斤拷也锟斤拷锟斤拷锟矫硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷达拷锟斤拷锟斤拷为锟斤拷锟斤拷实锟绞猴拷锟叫碉拷GDI锟斤拷式锟叫的碉拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷的讹拷锟斤拷锟斤拷实锟绞碉拷装锟斤拷锟斤拷锟斤拷锟斤拷同锟斤拷锟斤拷锟斤拷锟斤拷示平锟斤拷锟角碉拷锟斤拷图锟斤拷
锟斤拷式14-6锟斤拷示锟斤拷HELLOBIT锟斤拷式展示锟剿达拷锟筋技锟斤拷锟斤拷锟斤拷式锟斤拷一锟斤拷小锟斤拷锟斤拷图锟斤拷锟斤拷示锟斤拷锟街达拷锟斤拷Hello, world!锟斤拷锟斤拷然锟斤拷拥锟斤拷锟酵硷拷锟斤拷锟绞斤拷锟绞撅拷锟斤拷锟街达拷锟紹itBlt锟斤拷StretchBlt锟斤拷锟斤拷锟斤拷选锟斤拷墓锟斤拷鼙锟窖★拷锟斤拷锟斤拷锟斤拷锟斤拷
锟斤拷式14-6 HELLOBIT
HELLOBIT.C
/*-----------------------------------------------------------------------
HELLOBIT.C -- Bitmap Demonstration
(c) Charles Petzold, 1998
-------------------------------------------------------------------------*/
#include <windows.h>
#include "resource.h"
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName [] = TEXT ("HelloBit") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = szAppName ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox ( NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, TEXT ("HelloBit"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}
LRESULT CALLBACK WndProc ( HWND hwnd, UINT message, WPARAM wParam,LPARAM lParam)
{
static HBITMAP hBitmap ;
static HDC hdcMem ;
static int cxBitmap, cyBitmap, cxClient, cyClient, iSize = IDM_BIG ;
static TCHAR * szText = TEXT (" Hello, world! ") ;
HDC hdc ;
HMENU hMenu ;
int x, y ;
PAINTSTRUCT ps ;
SIZE size ;
switch (message)
{
case WM_CREATE:
hdc = GetDC (hwnd) ;
hdcMem = CreateCompatibleDC (hdc) ;
GetTextExtentPoint32 (hdc, szText, lstrlen (szText), &size) ;
cxBitmap = size.cx ;
cyBitmap = size.cy ;
hBitmap = CreateCompatibleBitmap (hdc, cxBitmap, cyBitmap) ;
ReleaseDC (hwnd, hdc) ;
SelectObject (hdcMem, hBitmap) ;
TextOut (hdcMem, 0, 0, szText, lstrlen (szText)) ;
return 0 ;
case WM_SIZE:
cxClient = LOWORD (lParam) ;
cyClient = HIWORD (lParam) ;
return 0 ;
case WM_COMMAND:
hMenu = GetMenu (hwnd) ;
switch (LOWORD (wParam))
{
case IDM_BIG:
case IDM_SMALL:
CheckMenuItem (hMenu, iSize, MF_UNCHECKED) ;
iSize = LOWORD (wParam) ;
CheckMenuItem (hMenu, iSize, MF_CHECKED) ;
InvalidateRect (hwnd, NULL, TRUE) ;
break ;
}
return 0 ;
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ;
switch (iSize)
{
case IDM_BIG:
StretchBlt (hdc, 0, 0, cxClient, cyClient,
hdcMem, 0, 0, cxBitmap, cyBitmap, SRCCOPY) ;
break ;
case IDM_SMALL:
for (y = 0 ; y < cyClient ; y += cyBitmap)
for (x = 0 ; x < cxClient ; x += cxBitmap)
{
BitBlt (hdc, x, y, cxBitmap, cyBitmap,
hdcMem, 0, 0, SRCCOPY) ;
}
break ;
}
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
DeleteDC (hdcMem) ;
DeleteObject (hBitmap) ;
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
HELLOBIT.RC 锟斤拷摘录锟斤拷
//Microsoft Developer Studio generated resource script.
#include "resource.h"
#include "afxres.h"
/////////////////////////////////////////////////////////////////////////////
// Menu
HELLOBIT MENU DISCARDABLE
BEGIN
POPUP "&Size"
BEGIN
MENUITEM "&Big", IDM_BIG, CHECKED
MENUITEM "&Small", IDM_SMALL
END
END
RESOURCE.H 锟斤拷摘录锟斤拷 // Microsoft Developer Studio generated include file. // Used by HelloBit.rc #define IDM_BIG 40001 #define IDM_SMALL 40002
锟斤拷式锟接猴拷锟斤拷GetTextExtentPoint32确锟斤拷锟街达拷锟斤拷图锟截尺寸开始锟斤拷锟斤拷些锟竭寸将锟斤拷为锟斤拷锟斤拷讯锟斤拷示锟斤拷锟捷的碉拷锟斤拷图锟竭寸。锟斤拷锟剿碉拷锟斤拷图锟斤拷选锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷ｏ拷也锟斤拷锟斤拷讯锟斤拷示锟斤拷锟捷ｏ拷锟结，锟劫猴拷锟斤拷TextOut锟斤拷锟斤拷锟斤拷锟斤拷示锟节碉拷锟斤拷图锟较★拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟节筹拷式执锟斤拷锟节间保锟斤拷锟斤拷锟节达拷锟斤拷WM_DESTROY锟斤拷讯锟节间，HELLOBIT删锟斤拷锟剿碉拷锟斤拷图锟酵硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷★拷
HELLOBIT锟叫碉拷一锟斤拷锟斤拷锟杰憋拷选锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷图锟竭寸，锟剿尺达拷锟斤拷锟斤拷锟斤拷锟绞撅拷锟斤拷锟斤拷锟剿斤拷痛锟街憋拷锟斤拷锟狡斤拷痰锟绞碉拷食叽纾拷锟斤拷锟斤拷锟斤拷锟斤拷懦锟斤拷锟绞撅拷锟斤拷锟斤拷小锟侥尺寸，锟斤拷图14-4锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟解不锟斤拷锟斤拷示锟斤拷叽锟斤拷锟皆拷暮梅锟斤拷锟斤拷锟斤拷锟街伙拷锟叫★拷锟斤拷锟侥放达拷妫拷锟斤拷锟斤拷蟹糯锟绞憋拷锟斤拷锟斤拷木锟斤拷锟竭★拷
锟斤拷
| 图14-4 HELLOBIT锟斤拷萤幕锟斤拷示 |
锟斤拷锟斤拷锟斤拷锟斤拷知锟斤拷一锟斤拷锟斤拷式锟斤拷锟斤拷锟斤拷HELLOBIT锟斤拷锟角凤拷锟斤拷要锟斤拷锟斤拷WM_DISPLAYCHANGE讯息锟斤拷只要使锟斤拷锟竭ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷应锟矫筹拷式锟斤拷锟睫革拷锟斤拷锟斤拷讯锟斤拷示锟斤拷小锟斤拷锟斤拷锟斤拷色锟斤拷龋锟接︼拷贸锟绞斤拷徒锟斤拷盏锟斤拷锟窖断拷锟斤拷锟斤拷锟斤拷锟缴拷锟饺的改憋拷岬硷拷录锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷莺锟斤拷锟窖蹲帮拷锟斤拷锟斤拷莶锟斤拷锟斤拷荨锟斤拷锟斤拷獠拷锟斤拷岱拷锟斤拷锟斤拷锟轿拷锟斤拷锟绞灸Ｊ斤拷薷锟斤拷幔琖indows锟皆讹拷锟睫革拷锟剿硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷碉拷锟斤拷色锟斤拷锟斤拷锟饺★拷选锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷的碉拷锟斤拷图锟斤拷然锟斤拷锟斤拷原锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷魏锟斤拷锟斤拷狻�
锟斤拷影锟斤拷锟斤拷图
锟斤拷
锟节硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷伙拷图锟斤拷也锟斤拷锟角碉拷锟斤拷图锟斤拷锟侥硷拷锟斤拷锟斤拷执锟叫★拷锟斤拷影锟斤拷锟斤拷图锟斤拷shadow bitmap锟斤拷锟斤拷锟侥关硷拷锟斤拷锟剿碉拷锟斤拷图锟斤拷锟斤拷锟接达拷锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷锟捷★拷锟斤拷锟斤拷锟斤拷锟斤拷WM_PAINT讯息锟侥达拷锟斤拷锟酵简化碉拷锟津单碉拷BitBlt锟斤拷
锟斤拷影锟斤拷锟斤拷图锟节绘画锟斤拷式锟斤拷锟斤拷锟斤拷锟矫★拷锟斤拷式14-7锟斤拷示锟斤拷SKETCH锟斤拷式锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟侥绘画锟斤拷式锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷始锟斤拷
锟斤拷式14-7 SKETCH
SKETCH.C
/*-------------------------------------------------------------------------
SKETCH.C -- Shadow Bitmap Demonstration
(c) Charles Petzold, 1998
---------------------------------------------------------------------------*/
#include <windows.h>
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName [] = TEXT ("Sketch") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox ( NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, TEXT ("Sketch"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
if (hwnd == NULL)
{
MessageBox ( NULL, TEXT ("Not enough memory to create bitmap!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}
void GetLargestDisplayMode (int * pcxBitmap, int * pcyBitmap)
{
DEVMODE devmode ;
int iModeNum = 0 ;
* pcxBitmap = * pcyBitmap = 0 ;
ZeroMemory (&devmode, sizeof (DEVMODE)) ;
devmode.dmSize = sizeof (DEVMODE) ;
while (EnumDisplaySettings (NULL, iModeNum++, &devmode))
{
* pcxBitmap = max (* pcxBitmap, (int) devmode.dmPelsWidth) ;
* pcyBitmap = max (* pcyBitmap, (int) devmode.dmPelsHeight) ;
}
}
LRESULT CALLBACK WndProc ( HWND hwnd, UINT message, WPARAM wParam,LPARAM lParam)
{
static BOOL fLeftButtonDown, fRightButtonDown ;
static HBITMAP hBitmap ;
static HDC hdcMem ;
static int cxBitmap, cyBitmap, cxClient, cyClient, xMouse, yMouse ;
HDC hdc ;
PAINTSTRUCT ps ;
switch (message)
{
case WM_CREATE:
GetLargestDisplayMode (&cxBitmap, &cyBitmap) ;
hdc = GetDC (hwnd) ;
hBitmap = CreateCompatibleBitmap (hdc, cxBitmap, cyBitmap) ;
hdcMem = CreateCompatibleDC (hdc) ;
ReleaseDC (hwnd, hdc) ;
if (!hBitmap) // no memory for bitmap
{
DeleteDC (hdcMem) ;
return -1 ;
}
SelectObject (hdcMem, hBitmap) ;
PatBlt (hdcMem, 0, 0, cxBitmap, cyBitmap, WHITENESS) ;
return 0 ;
case WM_SIZE:
cxClient = LOWORD (lParam) ;
cyClient = HIWORD (lParam) ;
return 0 ;
case WM_LBUTTONDOWN:
if (!fRightButtonDown)
SetCapture (hwnd) ;
xMouse = LOWORD (lParam) ;
yMouse = HIWORD (lParam) ;
fLeftButtonDown = TRUE ;
return 0 ;
case WM_LBUTTONUP:
if (fLeftButtonDown)
SetCapture (NULL) ;
fLeftButtonDown = FALSE ;
return 0 ;
case WM_RBUTTONDOWN:
if (!fLeftButtonDown)
SetCapture (hwnd) ;
xMouse = LOWORD (lParam) ;
yMouse = HIWORD (lParam) ;
fRightButtonDown = TRUE ;
return 0 ;
case WM_RBUTTONUP:
if (fRightButtonDown)
SetCapture (NULL) ;
fRightButtonDown = FALSE ;
return 0 ;
case WM_MOUSEMOVE:
if (!fLeftButtonDown && !fRightButtonDown)
return 0 ;
hdc = GetDC (hwnd) ;
SelectObject (hdc,
GetStockObject (fLeftButtonDown ? BLACK_PEN : WHITE_PEN)) ;
SelectObject (hdcMem,
GetStockObject (fLeftButtonDown ? BLACK_PEN : WHITE_PEN)) ;
MoveToEx (hdc, xMouse, yMouse, NULL) ;
MoveToEx (hdcMem, xMouse, yMouse, NULL) ;
xMouse = (short) LOWORD (lParam) ;
yMouse = (short) HIWORD (lParam) ;
LineTo (hdc, xMouse, yMouse) ;
LineTo (hdcMem, xMouse, yMouse) ;
ReleaseDC (hwnd, hdc) ;
return 0 ;
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ;
BitBlt (hdc, 0, 0, cxClient, cyClient, hdcMem, 0, 0, SRCCOPY) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
DeleteDC (hdcMem) ;
DeleteObject (hBitmap) ;
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
要锟斤拷锟斤拷SKETCH锟叫伙拷锟竭ｏ拷锟诫按锟铰伙拷锟斤拷锟斤拷锟斤拷锟斤拷隙锟斤拷锟斤拷锟揭拷锟斤拷锟斤拷锟斤拷锟斤拷亩锟斤拷锟斤拷锟斤拷锟饺凤拷械锟剿碉拷锟斤拷腔锟斤拷锟斤拷撸锟斤拷锟斤拷氚达拷禄锟斤拷锟斤拷壹锟斤拷锟斤拷隙锟斤拷锟斤拷锟揭拷锟斤拷锟斤拷锟斤拷锟接达拷锟斤拷锟诫…锟斤拷锟斤拷锟斤拷式锟斤拷然锟斤拷锟斤拷锟斤拷锟斤拷锟诫，一锟叫达拷头锟斤拷锟斤拷锟斤拷图14-5锟斤拷锟斤拷示锟斤拷SKETCH锟斤拷式图锟斤拷锟斤拷锟斤拷锟剿讹拷频锟斤拷锟斤拷司锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷诠锟斤拷木锟斤拷狻�
锟斤拷
| 图14-5 SKETCH锟斤拷萤幕锟斤拷示 |
锟斤拷锟斤拷影锟斤拷锟斤拷图应锟斤拷锟斤拷诒锟斤拷锟绞斤拷校锟斤拷锟接︼拷么锟斤拷馨锟斤拷锟斤拷锟斤拷锟接达拷锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷赘锟斤拷锟紾etSystemMetrics锟斤拷讯锟斤拷锟斤拷贸锟斤拷锟斤拷锟斤拷锟斤拷使锟斤拷锟斤拷锟睫革拷锟斤拷锟斤拷示锟借定锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞憋拷哟锟斤拷某叽纾拷锟绞憋拷锟斤拷锟斤拷锟绞裁达拷兀锟絊KETCH锟斤拷式锟斤拷EnumDisplaySettings锟斤拷式锟侥帮拷锟斤拷锟铰斤拷锟斤拷舜锟斤拷锟斤拷狻ｏ拷撕锟绞绞癸拷锟紻EVMODE锟结构锟斤拷锟斤拷锟斤拷全锟斤拷锟斤拷效锟斤拷讯锟斤拷示模式锟斤拷锟斤拷讯锟斤拷锟斤拷一锟轿猴拷锟叫此猴拷式时锟斤拷应锟斤拷EnumDisplaySettings锟侥第讹拷锟斤拷锟斤拷锟斤拷为0锟斤拷锟斤拷锟斤拷每锟轿猴拷锟叫达拷值锟斤拷锟斤拷锟接★拷EnumDisplaySettings锟斤拷锟斤拷FALSE时锟斤拷伞锟�
锟斤拷锟酵憋拷锟絊KETCH锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷影锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷目前锟斤拷讯锟斤拷示模式锟侥憋拷锟芥还锟斤拷锟侥憋拷锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟斤拷位元锟斤拷募锟斤拷锟斤拷濉ｏ拷锟斤拷锟斤拷耍锟絊KETCH锟斤拷锟斤拷锟斤拷锟斤拷图锟角凤拷锟斤拷锟缴癸拷锟剿ｏ拷锟斤拷锟矫伙拷薪锟斤拷锟斤拷锟斤拷痛锟絎M_CREATE锟斤拷锟斤拷-1锟斤拷锟皆憋拷示锟斤拷锟斤拷
锟斤拷WM_MOUSEMOVE讯息锟斤拷锟斤拷锟节间，锟斤拷锟铰伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷壹锟斤拷锟斤拷锟斤拷诩锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷莺锟斤拷锟绞撅拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟斤拷谢锟斤拷锟绞憋拷锟絊KETCH锟斤拷锟截伙拷锟斤拷锟斤拷锟斤拷锟斤拷叻锟绞斤拷锟斤拷锟斤拷拥幕锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟绞斤拷锟绞碉拷锟斤拷锟斤拷锟绞斤拷锟斤拷锟斤拷写撕锟绞斤拷锟斤拷危锟揭伙拷位锟斤拷锟斤拷锟窖蹲帮拷锟斤拷锟斤拷锟斤拷希锟揭伙拷位锟斤拷诩锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟斤拷稀锟�
锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷趣锟斤拷实锟介：使SKETCH锟接达拷小锟饺拷锟斤拷锟竭寸。锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷陌锟斤拷拢锟斤拷锟斤拷锟斤拷锟斤拷铣锟斤拷哟锟斤拷锟斤拷锟斤拷陆恰锟斤拷锟轿猄KETCH锟斤拷锟截伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟秸诧拷锟斤拷锟斤拷WM_MOUSEMOVE讯息锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟接达拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷影锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷SKETCH锟接达拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟捷★拷
锟节癸拷锟杰憋拷锟斤拷使锟矫碉拷锟斤拷图
锟斤拷
锟斤拷也锟斤拷锟斤拷锟矫碉拷锟斤拷图锟节癸拷锟杰憋拷锟斤拷锟斤拷示选锟筋。锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷鼙锟斤拷械锟斤拷锟斤拷小锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆达拷锟斤拷锟酵诧拷锟酵计拷锟斤拷锟矫达拷锟揭拷锟斤拷锟斤拷锟叫┩计拷恕锟斤拷锟接︼拷每锟斤拷锟揭伙拷拢锟斤拷锟斤拷鼙锟斤拷锟斤拷锟绞撅拷锟斤拷锟酵硷拷曰锟酵硷拷锟绞斤拷锟酵撅拷卸锟斤拷锟斤拷锟斤拷一锟斤拷锟节癸拷锟杰憋拷锟斤拷使锟矫诧拷同锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷小锟斤拷锟竭匡拷锟斤拷锟斤拷影图锟斤拷锟皆硷拷锟斤拷色锟斤拷
GRAFMENU锟斤拷展示图锟轿癸拷锟杰憋拷选锟斤拷姆锟斤拷锟斤拷锟绞斤拷锟斤拷顺锟绞斤拷锟斤拷愎︼拷鼙锟斤拷锟酵�14-6锟斤拷示锟斤拷锟脚达拷锟斤拷锟侥革拷锟斤拷锟斤拷40锟斤拷16图锟截的碉拷色锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟矫碉拷锟斤拷锟斤拷Visual C++ Developer Studio锟斤拷锟斤拷锟斤拷锟接癸拷锟杰憋拷锟斤拷选锟斤拷FONT锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷选锟斤拷锟筋－锟斤拷Courier New锟斤拷锟斤拷锟斤拷 Arial锟斤拷锟酵★拷Times New Roman锟斤拷锟斤拷锟斤拷锟斤拷锟角憋拷准锟斤拷Windows TrueType锟斤拷锟藉，锟斤拷锟斤拷每一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷氐锟斤拷锟斤拷锟斤拷锟绞撅拷锟斤拷锟酵�14-7锟斤拷示锟斤拷锟斤拷些锟斤拷锟斤拷图锟节筹拷式锟斤拷锟矫硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷斤拷锟斤拷锟斤拷
锟斤拷
| 图14-6 GRAFMENU锟斤拷式锟侥讹拷锟姐功锟杰憋拷 |
锟斤拷
| 图14-7 GRAFMENU锟斤拷式锟斤拷锟斤拷锟侥★拷FONT锟斤拷锟斤拷锟杰憋拷 |
锟斤拷锟结，锟斤拷锟斤拷锟斤拷系统锟斤拷锟杰憋拷时锟斤拷锟斤拷锟斤拷锟斤拷锟揭恍╋拷锟斤拷锟斤拷锟斤拷锟斤拷锟窖讹拷锟斤拷谩锟紿ELP锟斤拷锟斤拷示锟斤拷锟斤拷使锟斤拷锟竭碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷目锟斤拷锟轿硷拷图14-8锟斤拷锟斤拷锟斤拷64锟斤拷64图锟截的碉拷色锟斤拷锟斤拷图锟斤拷锟斤拷Developer Studio锟叫斤拷锟斤拷锟侥★拷
锟斤拷
| 图14-8 GRAFMENU锟斤拷式系统锟斤拷锟杰憋拷 |
GRAFMENU锟斤拷式锟斤拷锟斤拷锟斤拷锟侥革拷Developer Studio锟叫斤拷锟斤拷锟侥碉拷锟斤拷图锟斤拷锟斤拷锟绞�14-8锟斤拷示锟斤拷
锟斤拷式14-8 GRAFMENU
GRAFMENU.C
/*----------------------------------------------------------------------------
GRAFMENU.C -- Demonstrates Bitmap Menu Items
(c) Charles Petzold, 1998
-----------------------------------------------------------------------------*/
#include <windows.h>
#include "resource.h"
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
void AddHelpToSys (HINSTANCE, HWND) ;
HMENU CreateMyMenu (HINSTANCE) ;
HBITMAP StretchBitmap (HBITMAP) ;
HBITMAP GetBitmapFont (int) ;
void DeleteAllBitmaps (HWND) ;
TCHAR szAppName[] = TEXT ("GrafMenu") ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox ( NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName,TEXT ("Bitmap Menu Demonstration"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}
LRESULT CALLBACK WndProc ( HWND hwnd, UINT iMsg, WPARAM wParam,LPARAM lParam)
{
HMENU hMenu ;
static int iCurrentFont = IDM_FONT_COUR ;
switch (iMsg)
{
case WM_CREATE:
AddHelpToSys (((LPCREATESTRUCT) lParam)->hInstance, hwnd) ;
hMenu = CreateMyMenu (((LPCREATESTRUCT) lParam)->hInstance) ;
SetMenu (hwnd, hMenu) ;
CheckMenuItem (hMenu, iCurrentFont, MF_CHECKED) ;
return 0 ;
case WM_SYSCOMMAND:
switch (LOWORD (wParam))
{
case IDM_HELP:
MessageBox (hwnd, TEXT ("Help not yet implemented!"),
szAppName, MB_OK | MB_ICONEXCLAMATION) ;
return 0 ;
}
break ;
case WM_COMMAND:
switch (LOWORD (wParam))
{
case IDM_FILE_NEW:
case IDM_FILE_OPEN:
case IDM_FILE_SAVE:
case IDM_FILE_SAVE_AS:
case IDM_EDIT_UNDO:
case IDM_EDIT_CUT:
case IDM_EDIT_COPY:
case IDM_EDIT_PASTE:
case IDM_EDIT_CLEAR:
MessageBeep (0) ;
return 0 ;
case IDM_FONT_COUR:
case IDM_FONT_ARIAL:
case IDM_FONT_TIMES:
hMenu = GetMenu (hwnd) ;
CheckMenuItem (hMenu, iCurrentFont, MF_UNCHECKED) ;
iCurrentFont = LOWORD (wParam) ;
CheckMenuItem (hMenu, iCurrentFont, MF_CHECKED) ;
return 0 ;
}
break ;
case WM_DESTROY:
DeleteAllBitmaps (hwnd) ;
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, iMsg, wParam, lParam) ;
}
/*--------------------------------------------------------------------------
AddHelpToSys: Adds bitmap Help item to system menu
------------------------------------------------------------------------*/
void AddHelpToSys (HINSTANCE hInstance, HWND hwnd)
{
HBITMAP hBitmap ;
HMENU hMenu ;
hMenu = GetSystemMenu (hwnd, FALSE);
hBitmap = StretchBitmap (LoadBitmap (hInstance, TEXT ("BitmapHelp"))) ;
AppendMenu (hMenu, MF_SEPARATOR, 0, NULL) ;
AppendMenu (hMenu, MF_BITMAP, IDM_HELP, (PTSTR) (LONG) hBitmap) ;
}
/*------------------------------------------------------------------------
CreateMyMenu: Assembles menu from components
--------------------------------------------------------------------------*/
HMENU CreateMyMenu (HINSTANCE hInstance)
{
HBITMAP hBitmap ;
HMENU hMenu, hMenuPopup ;
int i ;
hMenu = CreateMenu () ;
hMenuPopup = LoadMenu (hInstance, TEXT ("MenuFile")) ;
hBitmap = StretchBitmap (LoadBitmap (hInstance, TEXT ("BitmapFile"))) ;
AppendMenu (hMenu, MF_BITMAP | MF_POPUP, (int) hMenuPopup,
(PTSTR) (LONG) hBitmap) ;
hMenuPopup = LoadMenu (hInstance, TEXT ("MenuEdit")) ;
hBitmap = StretchBitmap (LoadBitmap (hInstance, TEXT ("BitmapEdit"))) ;
AppendMenu (hMenu, MF_BITMAP | MF_POPUP, (int) hMenuPopup,
(PTSTR) (LONG) hBitmap) ;
hMenuPopup = CreateMenu () ;
for (i = 0 ; i < 3 ; i++)
{
hBitmap = GetBitmapFont (i) ;
AppendMenu (hMenuPopup, MF_BITMAP, IDM_FONT_COUR + i,
(PTSTR) (LONG) hBitmap) ;
}
hBitmap = StretchBitmap (LoadBitmap (hInstance, TEXT ("BitmapFont"))) ;
AppendMenu (hMenu, MF_BITMAP | MF_POPUP, (int) hMenuPopup,
(PTSTR) (LONG) hBitmap) ;
return hMenu ;
}
/*-------------------------------------------------------------------------
StretchBitmap: Scales bitmap to display resolution
---------------------------------------------------------------------------*/
HBITMAP StretchBitmap (HBITMAP hBitmap1)
{
BITMAP bm1, bm2 ;
HBITMAP hBitmap2 ;
HDC hdc, hdcMem1, hdcMem2 ;
int cxChar, cyChar ;
// Get the width and height of a system font character
cxChar = LOWORD (GetDialogBaseUnits ()) ;
cyChar = HIWORD (GetDialogBaseUnits ()) ;
// Create 2 memory DCs compatible with the display
hdc = CreateIC (TEXT ("DISPLAY"), NULL, NULL, NULL) ;
hdcMem1 = CreateCompatibleDC (hdc) ;
hdcMem2 = CreateCompatibleDC (hdc) ;
DeleteDC (hdc) ;
// Get the dimensions of the bitmap to be stretched
GetObject (hBitmap1, sizeof (BITMAP), (PTSTR) &bm1) ;
// Scale these dimensions based on the system font size
bm2 = bm1 ;
bm2.bmWidth = (cxChar * bm2.bmWidth) / 4 ;
bm2.bmHeight = (cyChar * bm2.bmHeight) / 8 ;
bm2.bmWidthBytes = ((bm2.bmWidth + 15) / 16) * 2 ;
// Create a new bitmap of larger size
hBitmap2 = CreateBitmapIndirect (&bm2) ;
// Select the bitmaps in the memory DCs and do a StretchBlt
SelectObject (hdcMem1, hBitmap1) ;
SelectObject (hdcMem2, hBitmap2) ;
StretchBlt (hdcMem2, 0, 0, bm2.bmWidth, bm2.bmHeight,
hdcMem1, 0, 0, bm1.bmWidth, bm1.bmHeight, SRCCOPY) ;
// Clean up
DeleteDC (hdcMem1) ;
DeleteDC (hdcMem2) ;
DeleteObject (hBitmap1) ;
return hBitmap2 ;
}
/*---------------------------------------------------------------------------
GetBitmapFont: Creates bitmaps with font names
-----------------------------------------------------------------------------*/
HBITMAP GetBitmapFont (int i)
{
static TCHAR * szFaceName[3]= { TEXT ("Courier New"), TEXT ("Arial"),
TEXT ("Times New Roman") } ;
HBITMAP hBitmap ;
HDC hdc, hdcMem ;
HFONT hFont ;
SIZE size ;
TEXTMETRIC tm ;
hdc = CreateIC (TEXT ("DISPLAY"), NULL, NULL, NULL) ;
GetTextMetrics (hdc, &tm) ;
hdcMem = CreateCompatibleDC (hdc) ;
hFont = CreateFont (2 * tm.tmHeight, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
szFaceName[i]) ;
hFont = (HFONT) SelectObject (hdcMem, hFont) ;
GetTextExtentPoint32 (hdcMem, szFaceName[i],
lstrlen (szFaceName[i]), &size);
hBitmap = CreateBitmap (size.cx, size.cy, 1, 1, NULL) ;
SelectObject (hdcMem, hBitmap) ;
TextOut (hdcMem, 0, 0, szFaceName[i], lstrlen (szFaceName[i])) ;
DeleteObject (SelectObject (hdcMem, hFont)) ;
DeleteDC (hdcMem) ;
DeleteDC (hdc) ;
return hBitmap ;
}
/*---------------------------------------------------------------------------
DeleteAllBitmaps: Deletes all the bitmaps in the menu
-------------------------------------------------------------------------*/
void DeleteAllBitmaps (HWND hwnd)
{
HMENU hMenu ;
int i ;
MENUITEMINFO mii = { sizeof (MENUITEMINFO), MIIM_SUBMENU | MIIM_TYPE } ;
// Delete Help bitmap on system menu
hMenu = GetSystemMenu (hwnd, FALSE);
GetMenuItemInfo (hMenu, IDM_HELP, FALSE, &mii) ;
DeleteObject ((HBITMAP) mii.dwTypeData) ;
// Delete top-level menu bitmaps
hMenu = GetMenu (hwnd) ;
for (i = 0 ; i < 3 ; i++)
{
GetMenuItemInfo (hMenu, i, TRUE, &mii) ;
DeleteObject ((HBITMAP) mii.dwTypeData) ;
}
// Delete bitmap items on Font menu
hMenu = mii.hSubMenu ;;
for (i = 0 ; i < 3 ; i++)
{
GetMenuItemInfo (hMenu, i, TRUE, &mii) ;
DeleteObject ((HBITMAP) mii.dwTypeData) ;
}
}
GRAFMENU.RC 锟斤拷摘录锟斤拷
//Microsoft Developer Studio generated resource script.
#include "resource.h"
#include "afxres.h"
/////////////////////////////////////////////////////////////////////////////
// Menu
MENUFILE MENU DISCARDABLE
BEGIN
MENUITEM "&New", IDM_FILE_NEW
MENUITEM "&Open...", IDM_FILE_OPEN
MENUITEM "&Save", IDM_FILE_SAVE
MENUITEM "Save &As...", IDM_FILE_SAVE_AS
END
MENUEDIT MENU DISCARDABLE
BEGIN
MENUITEM "&Undo", IDM_EDIT_UNDO
MENUITEM SEPARATOR
MENUITEM "Cu&t", IDM_EDIT_CUT
MENUITEM "&Copy", IDM_EDIT_COPY
MENUITEM "&Paste", IDM_EDIT_PASTE
MENUITEM "De&lete", IDM_EDIT_CLEAR
END
/////////////////////////////////////////////////////////////////////////////
// Bitmap
BITMAPFONT BITMAP DISCARDABLE "Fontlabl.bmp"
BITMAPHELP BITMAP DISCARDABLE "Bighelp.bmp"
BITMAPEDIT BITMAP DISCARDABLE "Editlabl.bmp"
BITMAPFILE BITMAP DISCARDABLE "Filelabl.bmp"
RESOURCE.H 锟斤拷摘录锟斤拷 // Microsoft Developer Studio generated include file. // Used by GrafMenu.rc #define IDM_FONT_COUR 101 #define IDM_FONT_ARIAL 102 #define IDM_FONT_TIMES 103 #define IDM_HELP 104 #define IDM_EDIT_UNDO 40005 #define IDM_EDIT_CUT 40006 #define IDM_EDIT_COPY 40007 #define IDM_EDIT_PASTE 40008 #define IDM_EDIT_CLEAR 40009 #define IDM_FILE_NEW 40010 #define IDM_FILE_OPEN 40011 #define IDM_FILE_SAVE 40012 #define IDM_FILE_SAVE_AS 40013
|
EDITLABL.BMP 锟斤拷
|
|---|
|
FILELABL.BMP 锟斤拷
|
|
FONTLABL.BMP 锟斤拷
|
|
BIGHELP.BMP 锟斤拷
|
要锟斤拷锟斤拷锟斤拷图锟斤拷锟诫功锟杰憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷AppendMenu锟斤拷InsertMenu锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷源锟斤拷锟斤拷锟斤拷锟斤拷Visual C++ Developer Studio锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷源锟脚憋拷锟叫的碉拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟节筹拷式使锟斤拷LoadBitmap时锟斤拷锟斤拷锟斤拷图锟斤拷源锟斤拷锟诫到锟斤拷锟斤拷锟藉，然锟斤拷锟斤拷锟紸ppendMenu锟斤拷InsertMenu锟斤拷锟斤拷锟斤拷图锟斤拷锟接碉拷锟斤拷锟杰憋拷锟较★拷锟斤拷锟斤拷锟斤拷锟斤拷锟街凤拷锟斤拷锟斤拷锟斤拷一些锟斤拷锟解：锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞灸Ｊ斤拷慕锟斤拷锟斤拷群锟斤拷莺锟饺ｏ拷锟斤拷时锟斤拷锟斤拷要锟斤拷锟斤拷锟斤拷锟斤拷牡锟斤拷锟酵硷拷越锟斤拷锟斤拷锟斤拷锟解。锟斤拷一锟街凤拷锟斤拷锟角ｏ拷锟节筹拷式锟节诧拷锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷选锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷然锟斤拷锟劫革拷锟接碉拷锟斤拷锟杰憋拷锟叫★拷
GRAFMENU锟叫碉拷GetBitmapFont锟斤拷式锟侥诧拷锟斤拷为0锟斤拷1锟斤拷2锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷图锟斤拷锟脚★拷锟剿碉拷锟斤拷图锟斤拷锟斤拷锟街达拷锟斤拷Courier New锟斤拷锟斤拷锟斤拷Arial锟斤拷锟斤拷Times New Roman锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角革拷锟皆讹拷应锟斤拷锟斤拷锟藉，锟斤拷小锟斤拷锟斤拷锟斤拷系统锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷强锟斤拷锟紾etBitmapFont锟斤拷锟斤拷么锟斤拷锟侥★拷锟斤拷锟斤拷锟斤拷某锟绞斤拷锟斤拷锟紾RAFMENU.C锟斤拷锟斤拷锟叫碉拷锟斤拷些锟斤拷同锟斤拷为锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟矫★拷Arial锟斤拷锟斤拷锟斤拷锟斤拷应锟斤拷值锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷szFaceName锟斤拷锟叫★拷锟斤拷
锟斤拷一锟斤拷锟斤拷锟斤拷TEXTMETRIC锟结构锟斤拷确锟斤拷目前系统锟斤拷锟斤拷拇锟叫★拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟侥壳坝┠伙拷锟斤拷莸募锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷荩锟�
hdc = CreateIC (TEXT ("DISPLAY"), NULL, NULL, NULL) ;
GetTextMetrics (hdc, &tm) ;
hdcMem = CreateCompatibleDC (hdc) ;
CreateFont锟斤拷式锟斤拷锟斤拷锟斤拷一锟斤拷锟竭硷拷锟斤拷锟藉，锟斤拷锟斤拷锟斤拷锟斤拷锟较低筹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟竭硷拷锟斤拷锟斤拷为锟斤拷Arial锟斤拷锟斤拷
hFont = CreateFont (2 * tm.tmHeight, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
TEXT ("Arial")) ;
锟接硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷选锟斤拷锟斤拷锟斤拷澹伙拷岽拷锟斤拷诙锟斤拷锟斤拷锟斤拷锟脚ｏ拷
hFont = (HFONT) SelectObject (hdcMem, hFont) ;
锟斤拷锟节ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟叫匆恍╋拷锟斤拷锟绞憋拷锟絎indows锟酵伙拷使锟斤拷选锟斤拷装锟斤拷锟斤拷锟捷碉拷TrueType Arial锟斤拷锟斤拷锟剿★拷
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟斤拷锟斤拷只锟斤拷一锟斤拷锟斤拷图锟截碉拷色锟借备平锟芥。锟斤拷锟角憋拷锟诫建锟斤拷一锟斤拷锟姐够锟斤拷牡锟斤拷锟酵硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭拷锟绞撅拷锟斤拷锟斤拷帧锟酵拷锟紾etTextExtentPoint32锟斤拷式锟斤拷锟斤拷锟斤拷取锟斤拷锟斤拷锟街的达拷小锟斤拷锟斤拷锟斤拷CreateBitmap锟斤拷锟皆革拷锟斤拷锟斤拷些锟竭达拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷
GetTextExtentPoint32 (hdcMem, TEXT ("Arial"), 5, &size) ;
hBitmap = CreateBitmap (size.cx, size.cy, 1, 1, NULL) ;
SelectObject (hdcMem, hBitmap) ;
锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟缴拷锟斤拷锟绞酒斤拷妫拷锟叫∫诧拷锟斤拷细锟斤拷锟斤拷锟街尺寸。锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟侥撅拷锟斤拷锟斤拷写锟斤拷锟街ｏ拷
TextOut (hdcMem, 0, 0, TEXT ("Arial"), 5) ;
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷械墓锟斤拷锟斤拷锟斤拷锟斤拷锟剿★拷要锟斤拷锟斤拷锟斤拷锟斤拷强锟斤拷锟斤拷锟絊electObject锟斤拷系统锟斤拷锟藉（锟斤拷锟叫达拷锟斤拷hFont锟斤拷锟斤拷锟斤拷选锟斤拷装锟斤拷锟斤拷锟捷ｏ拷然锟斤拷删锟斤拷SelectObject锟斤拷锟截碉拷前一锟斤拷锟斤拷锟斤拷锟斤拷牛锟揭诧拷锟斤拷锟紸rial锟斤拷锟斤拷锟斤拷牛锟�
DeleteObject (SelectObject (hdcMem, hFont)) ;
锟斤拷锟节匡拷锟斤拷删锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷ｏ拷
DeleteDC (hdcMem) ; DeleteDC (hdc) ;
锟斤拷锟斤拷锟斤拷锟斤拷锟角就伙拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟酵硷拷锟斤拷玫锟斤拷锟酵硷拷锟斤拷锟紸rial锟斤拷锟斤拷锟斤拷执锟斤拷锟紸rial锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷应锟斤拷同锟斤拷示锟斤拷锟斤拷锟饺伙拷锟捷猴拷锟绞憋拷锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟揭诧拷芙锟斤拷锟斤拷锟解。锟斤拷GRAFMENU锟斤拷式锟叫ｏ拷锟揭斤拷锟斤拷锟斤拷锟侥革拷锟斤拷锟斤拷图锟斤拷锟斤拷些锟斤拷锟斤拷图只锟斤拷锟斤拷锟较低筹拷锟斤拷锟斤拷8图锟截★拷锟斤拷4图锟截碉拷锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷叽锟斤拷系统锟斤拷锟藉，只锟斤拷锟斤拷锟脚碉拷锟斤拷图锟斤拷GRAFMENU锟叫碉拷StretchBitmap锟斤拷式锟斤拷纱斯锟斤拷堋锟�
锟斤拷一锟斤拷锟角伙拷锟斤拷锟绞撅拷锟阶帮拷锟斤拷锟斤拷荩锟饺伙拷锟饺★拷锟较低筹拷锟斤拷锟斤拷锟斤拷锟街癸拷瘢锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷荩锟�
hdc = CreateIC (TEXT ("DISPLAY"), NULL, NULL, NULL) ;
GetTextMetrics (hdc, &tm) ;
hdcMem1 = CreateCompatibleDC (hdc) ;
hdcMem2 = CreateCompatibleDC (hdc) ;
DeleteDC (hdc) ;
锟斤拷锟捷革拷锟斤拷式锟侥碉拷锟斤拷图锟斤拷锟斤拷锟斤拷hBitmap1锟斤拷锟斤拷式锟斤拷锟斤拷GetObject锟斤拷玫锟斤拷锟酵硷拷拇锟叫★拷锟�
GetObject (hBitmap1, sizeof (BITMAP), (PSTR) &bm1) ;
锟剿诧拷锟斤拷锟斤拷锟竭寸复锟狡碉拷BITMAP锟斤拷态锟侥结构bm1锟叫★拷锟结构bm2锟斤拷於结构bm1锟斤拷然锟斤拷锟斤拷锟较低筹拷锟斤拷锟斤拷小锟斤拷锟睫革拷某些锟斤拷位锟斤拷
bm2 = bm1 ; bm2.bmWidth = (tm.tmAveCharWidth * bm2.bmWidth) / 4 ; bm2.bmHeight = (tm.tmHeight * bm2.bmHeight) / 8 ; bm2.bmWidthBytes = ((bm2.bmWidth + 15) / 16) * 2 ;
锟斤拷一锟斤拷锟斤拷锟斤拷图锟斤拷锟叫达拷锟斤拷hBitmap2锟斤拷锟斤拷锟皆革拷锟捷讹拷态锟侥尺寸建锟斤拷锟斤拷
hBitmap2 = CreateBitmapIndirect (&bm2) ;
然锟结将锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷图选锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟叫ｏ拷
SelectObject (hdcMem1, hBitmap1) ; SelectObject (hdcMem2, hBitmap2) ;
锟斤拷锟斤拷锟斤拷训锟揭伙拷锟斤拷锟斤拷锟酵硷拷锟斤拷聘锟斤拷诙锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷诖顺锟斤拷锟斤拷薪锟斤拷锟斤拷锟斤拷臁ｏ拷锟斤拷锟斤拷StretchBlt锟斤拷锟叫ｏ拷
StretchBlt ( hdcMem2, 0, 0, bm2.bmWidth, bm2.bmHeight,
hdcMem1, 0, 0, bm1.bmWidth, bm1.bmHeight, SRCCOPY) ;
锟斤拷锟节第讹拷锟斤拷图锟绞碉拷锟斤拷锟斤拷锟斤拷锟剿ｏ拷锟斤拷锟角可斤拷锟斤拷锟矫碉拷锟斤拷锟杰憋拷锟叫★拷剩锟铰碉拷锟斤拷锟斤拷锟斤拷锟斤拷芗虻ィ锟�
DeleteDC (hdcMem1) ; DeleteDC (hdcMem2) ; DeleteObject (hBitmap1) ;
锟节斤拷锟届功锟杰憋拷时锟斤拷GRAFMENU锟叫碉拷CreateMyMenu锟斤拷式锟斤拷锟斤拷锟斤拷StretchBitmap锟斤拷GetBitmapFont锟斤拷式锟斤拷GRAFMENU锟斤拷锟斤拷源锟斤拷锟斤拷锟叫讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟杰憋拷锟斤拷锟斤拷选锟斤拷File锟斤拷锟酵★拷Edit锟斤拷选锟斤拷时锟结弹锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟杰憋拷锟斤拷锟斤拷式锟斤拷始锟斤拷取锟斤拷一锟斤拷锟秸癸拷锟杰憋拷锟侥达拷锟脚ｏ拷
hMenu = CreateMenu () ;
锟斤拷锟斤拷源锟斤拷锟斤拷锟斤拷锟诫「File锟斤拷锟斤拷突锟斤拷式锟斤拷锟杰憋拷锟斤拷锟斤拷锟斤拷锟侥革拷选锟筋：锟斤拷New锟斤拷锟斤拷锟斤拷Open锟斤拷锟斤拷锟斤拷Save锟斤拷锟酵★拷Save as锟斤拷锟斤拷锟斤拷
hMenuPopup = LoadMenu (hInstance, TEXT ("MenuFile")) ;
锟斤拷锟斤拷源锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟剿帮拷锟斤拷锟斤拷FILE锟斤拷锟侥碉拷锟斤拷图锟斤拷锟斤拷锟斤拷StretchBitmap锟斤拷锟斤拷锟斤拷锟斤拷锟届：
hBitmapFile = StretchBitmap (LoadBitmap (hInstance, TEXT ("BitmapFile"))) ;
锟斤拷锟斤拷图锟斤拷锟脚猴拷突锟斤拷式锟斤拷锟杰憋拷锟斤拷锟脚讹拷锟斤拷AppendMenu锟斤拷锟叫的诧拷锟斤拷锟斤拷
AppendMenu (hMenu, MF_BITMAP | MF_POPUP, hMenuPopup, (PTSTR) (LONG) hBitmapFile) ;
锟斤拷Edit锟斤拷锟斤拷锟杰憋拷锟斤拷锟狡筹拷锟斤拷锟斤拷锟铰ｏ拷
hMenuPopup = LoadMenu (hInstance, TEXT ("MenuEdit")) ;
hBitmapEdit = StretchBitmap (LoadBitmap (hInstance, TEXT ("BitmapEdit"))) ;
AppendMenu (hMenu, MF_BITMAP | MF_POPUP, hMenuPopup, (PTSTR)(LONG) hBitmapEdit) ;
锟斤拷锟斤拷GetBitmapFont锟斤拷式锟斤拷锟皆癸拷锟斤拷锟斤拷锟斤拷锟街诧拷同锟斤拷锟斤拷锟酵伙拷锟绞斤拷锟斤拷鼙锟斤拷锟�
hMenuPopup = CreateMenu () ;
for (i = 0 ; i < 3 ; i++)
{
hBitmapPopFont [i] = GetBitmapFont (i) ;
AppendMenu (hMenuPopup, MF_BITMAP, IDM_FONT_COUR + i,
(PTSTR) (LONG) hMenuPopupFont [i]) ;
}
然锟结将突锟斤拷式锟斤拷锟杰憋拷锟斤拷锟接碉拷锟斤拷锟杰憋拷锟叫ｏ拷
hBitmapFont = StretchBitmap (LoadBitmap (hInstance, "BitmapFont")) ; AppendMenu ( hMenu, MF_BITMAP | MF_POPUP, hMenuPopup, (PTSTR) (LONG) hBitmapFont) ;
WndProc通锟斤拷锟斤拷锟斤拷SetMenu锟斤拷锟斤拷锟斤拷锟斤拷哟锟斤拷锟斤拷鼙锟斤拷慕锟斤拷锟斤拷锟斤拷锟斤拷锟�
GRAFMENU锟斤拷锟侥憋拷锟斤拷AddHelpToSys锟斤拷式锟叫碉拷系统锟斤拷锟杰憋拷锟斤拷锟剿猴拷式锟斤拷锟饺伙拷锟揭伙拷锟较低筹拷锟斤拷鼙锟斤拷锟斤拷牛锟�
hMenu = GetSystemMenu (hwnd, FALSE) ;
锟解将锟斤拷锟诫「HELP锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟届到锟绞碉拷锟竭寸：
hBitmapHelp = StretchBitmap (LoadBitmap (hInstance, TEXT ("BitmapHelp"))) ;
锟解将锟斤拷系统锟斤拷锟杰憋拷锟斤拷锟斤拷一锟斤拷锟街革拷锟竭猴拷锟斤拷锟斤拷牡锟斤拷锟酵硷拷锟�
AppendMenu (hMenu, MF_SEPARATOR, 0, NULL) ; AppendMenu (hMenu, MF_BITMAP, IDM_HELP, (PTSTR)(LONG) hBitmapHelp) ;
GRAFMENU锟斤拷锟剿筹拷之前锟斤拷锟斤拷一锟斤拷锟斤拷式锟斤拷锟斤拷锟斤拷锟缴撅拷锟斤拷锟斤拷械锟斤拷锟酵硷拷锟�
锟斤拷锟斤拷锟斤拷锟节癸拷锟杰憋拷锟斤拷使锟矫碉拷锟斤拷图锟斤拷一些注锟斤拷锟斤拷锟筋。
锟节讹拷锟姐功锟杰憋拷锟叫ｏ拷Windows锟斤拷锟斤拷锟斤拷锟杰憋拷锟叫的高讹拷锟斤拷锟斤拷应锟斤拷叩牡锟斤拷锟酵硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵�(锟斤拷锟街达拷)锟角革拷锟捷癸拷锟杰憋拷锟叫的讹拷锟剿讹拷锟斤拷摹锟斤拷锟斤拷锟节讹拷锟姐功锟杰憋拷锟斤拷使锟斤拷锟剿碉拷锟斤拷图锟斤拷锟斤拷么锟斤拷使锟矫筹拷锟斤拷SM_CYMENU锟斤拷GetSystemMetrics锟矫碉拷锟侥癸拷锟杰憋拷锟叫达拷小锟斤拷锟斤拷锟斤拷锟斤拷效锟斤拷
执锟斤拷GRAFMENU锟节硷拷锟斤拷钥锟斤拷锟斤拷锟斤拷锟酵伙拷锟绞斤拷锟斤拷鼙锟斤拷校锟斤拷锟斤拷锟绞癸拷么锟斤拷械锟斤拷锟酵硷拷锟斤拷鼙锟斤拷锟侥癸拷选锟斤拷牵锟斤拷锟斤拷锟窖★拷锟斤拷锟斤拷锟斤拷锟斤拷锟竭寸。锟斤拷锟斤拷锟斤拷锟斤拷猓拷锟斤拷锟斤拷越锟斤拷锟揭伙拷锟斤拷远锟斤拷墓锟窖★拷锟角ｏ拷锟斤拷使锟斤拷SetMenuItemBitmaps锟斤拷
锟节癸拷锟杰憋拷锟斤拷使锟矫凤拷锟斤拷锟街ｏ拷锟斤拷锟斤拷使锟矫凤拷系统锟斤拷锟斤拷锟斤拷锟斤拷郑锟斤拷锟斤拷锟揭伙拷址锟斤拷锟斤拷恰锟接碉拷锟斤拷呋锟斤拷啤锟斤拷锟斤拷鼙锟斤拷锟�
锟斤拷锟杰憋拷锟侥硷拷锟教斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟解。锟斤拷锟斤拷锟杰憋拷锟斤拷锟斤拷锟斤拷锟斤拷时锟斤拷Windows锟斤拷锟皆讹拷锟斤拷锟接硷拷锟教斤拷锟芥。要选锟斤拷一锟斤拷锟斤拷锟杰憋拷锟筋，锟斤拷锟斤拷使锟斤拷Alt锟斤拷锟街达拷锟叫碉拷一锟斤拷锟斤拷母锟斤拷锟斤拷霞锟斤拷锟斤拷锟揭伙拷锟斤拷诠锟斤拷鼙锟斤拷蟹锟斤拷锟斤拷说锟斤拷锟酵硷拷锟斤拷锟缴撅拷锟斤拷思锟斤拷探锟斤拷妗ｏ拷锟绞癸拷锟斤拷锟酵硷拷锟斤拷锟斤拷锟揭伙拷锟斤拷暮锟斤拷澹拷锟絎indows锟斤拷锟斤拷知锟斤拷锟斤拷
目前锟斤拷锟角匡拷锟斤拷使锟斤拷WM_MENUCHAR讯息锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷Alt锟斤拷锟诫功锟杰憋拷锟筋不锟斤拷锟斤拷锟揭伙拷锟斤拷锟皆拷锟斤拷锟斤拷锟较硷拷时锟斤拷Windows锟斤拷锟斤拷锟斤拷锟斤拷锟接达拷讯息锟斤拷锟斤拷锟斤拷式锟斤拷锟斤拷一锟斤拷WM_MENUCHAR讯息锟斤拷GRAFMENU锟斤拷要锟斤拷取WM_MENUCHAR讯息锟斤拷锟斤拷锟絯Param锟斤拷值锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷ASCII锟诫）锟斤拷锟斤拷锟斤拷锟斤拷值锟斤拷应一锟斤拷锟斤拷锟杰憋拷锟筋，锟斤拷么锟斤拷Windows锟斤拷锟斤拷双锟斤拷锟介：锟斤拷锟叫革拷锟斤拷锟斤拷为2锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷眉锟斤拷锟截的癸拷锟杰憋拷锟斤拷锟斤拷锟斤拷值锟斤拷然锟斤拷锟斤拷Windows锟斤拷锟斤拷锟斤拷锟铰碉拷锟铰★拷
锟角撅拷锟轿碉拷锟斤拷图图锟斤拷
锟斤拷
锟斤拷锟斤拷图锟斤拷锟角撅拷锟轿ｏ拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷示锟缴撅拷锟轿★拷锟斤拷锟界，锟劫讹拷锟斤拷锟斤拷一锟斤拷锟斤拷锟轿碉拷锟斤拷图图锟今，碉拷锟斤拷却锟诫将锟斤拷锟斤拷示锟斤拷锟斤拷圆锟轿★拷
锟斤拷锟饺ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟杰简单★拷锟斤拷只锟借将图锟斤拷锟斤拷锟斤拷Visual C++ Developer Studio锟斤拷锟斤拷Windows锟侥★拷锟斤拷图锟斤拷锟斤拷式锟斤拷锟斤拷锟竭革拷锟斤拷锟斤拷锟接︼拷贸锟绞斤拷锟斤拷锟饺伙拷锟斤拷冒锟缴拷幕锟斤拷式锟酵硷拷锟斤拷锟斤拷芑锟斤拷习锟缴拷锟斤拷锟绞憋拷锟斤拷锟斤拷一锟斤拷锟斤拷圆锟轿碉拷图锟今，讹拷锟斤拷圆锟斤拷锟斤拷锟斤拷统锟斤拷税锟缴拷锟街伙拷械锟斤拷锟斤拷锟缴拷锟缴憋拷说锟斤拷锟酵硷拷锟斤拷锟斤拷锟饺凤拷锟绞撅拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷色锟斤拷锟斤拷示锟斤拷锟斤拷锟酵会发锟斤拷锟斤拷圆锟轿碉拷图锟斤拷捅锟斤拷锟街拷锟斤拷锟揭伙拷锟斤拷锟缴拷木锟斤拷巍锟斤拷锟斤拷锟叫э拷锟斤拷锟斤拷谩锟�
锟斤拷一锟街非筹拷通锟矫的硷拷锟斤拷锟缴斤拷锟斤拷锟斤拷锟斤拷锟斤拷狻ｏ拷锟斤拷旨锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷郑锟絤ask锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷一些位元映锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭伙拷值锟缴拷锟斤拷锟酵硷拷锟斤拷锟斤拷锟斤拷锟揭拷锟绞撅拷木锟斤拷蔚锟斤拷锟酵纪硷拷锟竭达拷锟斤拷同锟斤拷每锟斤拷锟斤拷锟街碉拷图锟截讹拷锟斤拷应锟斤拷锟斤拷图图锟斤拷锟揭伙拷锟酵硷拷亍锟斤拷锟斤拷锟酵硷拷锟斤拷锟�1(锟斤拷色)锟斤拷锟斤拷应锟斤拷锟斤拷锟斤拷图图锟斤拷锟斤拷示锟斤拷锟斤拷0(锟斤拷色)锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟街碉拷锟斤拷图锟斤拷锟斤拷喾达拷锟斤拷锟斤拷锟斤拷锟斤拷使锟矫碉拷位元映锟斤拷锟斤拷锟斤拷锟斤拷锟揭恍╋拷锟斤拷应锟侥变化锟斤拷锟斤拷
锟斤拷锟斤拷锟角匡拷锟斤拷BITMASK锟斤拷式锟斤拷锟斤拷锟绞碉拷锟斤拷锟揭伙拷锟斤拷锟斤拷摹锟斤拷锟斤拷式14-9锟斤拷示锟斤拷
锟斤拷式14-9 BITMASK
BITMASK.C
/*---------------------------------------------------------------------------
BITMASK.C -- Bitmap Masking Demonstration
(c) Charles Petzold, 1998
----------------------------------------------------------------------------*/
#include <windows.h>
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName [] = TEXT ("BitMask") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (LTGRAY_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, TEXT ("Bitmap Masking Demo"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam,LPARAM lParam)
{
static HBITMAP hBitmapImag, hBitmapMask ;
static HINSTANCE hInstance ;
static int cxClient, cyClient, cxBitmap, cyBitmap ;
BITMAP bitmap ;
HDC hdc, hdcMemImag, hdcMemMask ;
int x, y ;
PAINTSTRUCT ps ;
switch (message)
{
case WM_CREATE:
hInstance = ((LPCREATESTRUCT) lParam)->hInstance ;
// Load the original image and get its size
hBitmapImag = LoadBitmap (hInstance, TEXT ("Matthew")) ;
GetObject (hBitmapImag, sizeof (BITMAP), &bitmap) ;
cxBitmap = bitmap.bmWidth ;
cyBitmap = bitmap.bmHeight ;
// Select the original image into a memory DC
hdcMemImag = CreateCompatibleDC (NULL) ;
SelectObject (hdcMemImag, hBitmapImag) ;
// Create the monochrome mask bitmap and memory DC
hBitmapMask = CreateBitmap (cxBitmap, cyBitmap, 1, 1, NULL) ;
hdcMemMask = CreateCompatibleDC (NULL) ;
SelectObject (hdcMemMask, hBitmapMask) ;
// Color the mask bitmap black with a white ellipse
SelectObject (hdcMemMask, GetStockObject (BLACK_BRUSH)) ;
Rectangle (hdcMemMask, 0, 0, cxBitmap, cyBitmap) ;
SelectObject (hdcMemMask, GetStockObject (WHITE_BRUSH)) ;
Ellipse (hdcMemMask, 0, 0, cxBitmap, cyBitmap) ;
// Mask the original image
BitBlt (hdcMemImag, 0, 0, cxBitmap, cyBitmap,
hdcMemMask, 0, 0, SRCAND) ;
DeleteDC (hdcMemImag) ;
DeleteDC (hdcMemMask) ;
return 0 ;
case WM_SIZE:
cxClient = LOWORD (lParam) ;
cyClient = HIWORD (lParam) ;
return 0 ;
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ;
// Select bitmaps into memory DCs
hdcMemImag = CreateCompatibleDC (hdc) ;
SelectObject (hdcMemImag, hBitmapImag) ;
hdcMemMask = CreateCompatibleDC (hdc) ;
SelectObject (hdcMemMask, hBitmapMask) ;
// Center image
x = (cxClient - cxBitmap) / 2 ;
y = (cyClient - cyBitmap) / 2 ;
// Do the bitblts
BitBlt (hdc, x, y, cxBitmap, cyBitmap, hdcMemMask, 0, 0, 0x220326) ;
BitBlt (hdc, x, y, cxBitmap, cyBitmap, hdcMemImag, 0, 0, SRCPAINT) ;
DeleteDC (hdcMemImag) ;
DeleteDC (hdcMemMask) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
DeleteObject (hBitmapImag) ;
DeleteObject (hBitmapMask) ;
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
BITMASK.RC // Microsoft Developer Studio generated resource script. #include "resource.h" #include "afxres.h" ///////////////////////////////////////////////////////////////////////////// // Bitmap MATTHEW BITMAP DISCARDABLE "matthew.bmp"
锟斤拷源锟斤拷锟斤拷锟叫碉拷MATTHEW.BMP锟斤拷锟斤拷锟斤拷锟斤拷侄锟接碉拷一锟斤拷锟节帮拷锟斤拷位锟斤拷片锟斤拷锟斤拷200图锟截ｏ拷锟斤拷320图锟截ｏ拷每图锟斤拷8位元锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷BITMASK只锟斤拷锟斤拷为锟剿碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿何讹拷锟斤拷锟斤拷锟斤拷锟皆★拷
注锟解，BITMASK锟斤拷锟接达拷锟斤拷锟斤拷锟斤拷为锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷锟斤拷确锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷确锟斤拷锟斤拷锟街碉拷锟斤拷图锟斤拷锟斤拷锟斤拷只锟角斤拷锟斤拷涂锟缴帮拷色锟斤拷
锟斤拷锟斤拷锟斤拷锟斤拷锟角匡拷一锟斤拷WM_CREATE锟侥达拷锟斤拷锟斤拷锟斤拷BITMASK锟斤拷LoadBitmap锟斤拷式锟斤拷锟絟BitmapImag锟斤拷锟斤拷锟斤拷原始图锟斤拷拇锟斤拷拧锟斤拷锟紾etObject锟斤拷式锟斤拷取锟矫碉拷锟斤拷图锟侥匡拷锟饺高度★拷然锟结将锟斤拷锟斤拷图锟斤拷锟斤拷选锟斤拷锟斤拷锟斤拷为hdcMemImag锟侥硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟叫★拷
锟斤拷式锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷色锟斤拷锟斤拷图锟斤拷原锟斤拷锟斤拷图锟斤拷小锟斤拷同锟斤拷锟斤拷锟斤拷糯锟斤拷锟斤拷锟絟BitmapMask锟斤拷锟斤拷选锟斤拷锟斤拷锟斤拷为hdcMemMask锟侥硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟叫★拷锟节硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟叫ｏ拷使锟斤拷GDI锟斤拷式锟斤拷锟斤拷锟街碉拷锟斤拷图锟斤拷涂锟斤拷锟剿猴拷色锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷色锟斤拷锟斤拷圆锟斤拷
SelectObject (hdcMemMask, GetStockObject (BLACK_BRUSH)) ; Rectangle (hdcMemMask, 0, 0, cxBitmap, cyBitmap) ; SelectObject (hdcMemMask, GetStockObject (WHITE_BRUSH)) ; Ellipse (hdcMemMask, 0, 0, cxBitmap, cyBitmap) ;
锟斤拷为锟斤拷锟斤拷一锟斤拷锟斤拷色锟侥碉拷锟斤拷图锟斤拷锟斤拷锟皆猴拷色锟斤拷锟斤拷锟轿辉拷锟�0锟斤拷锟斤拷锟斤拷色锟斤拷锟斤拷锟轿辉拷锟�1锟斤拷
然锟斤拷BitBlt锟斤拷锟叫就帮拷锟斤拷锟斤拷锟斤拷锟睫革拷锟斤拷原图锟斤拷
BitBlt (hdcMemImag, 0, 0, cxBitmap, cyBitmap,
hdcMemMask, 0, 0, SRCAND) ;
SRCAND位元映锟斤拷锟斤拷锟斤拷锟斤拷锟皆次辉拷锟斤拷锟斤拷值锟斤拷锟酵硷拷锟斤拷锟侥匡拷锟轿辉拷锟皆硷拷锟街拷锟街达拷锟斤拷锟轿辉狝ND锟斤拷锟斤拷锟斤拷只要锟斤拷锟街碉拷锟斤拷图锟角帮拷色锟斤拷锟斤拷锟斤拷示目锟侥ｏ拷只要锟斤拷锟斤拷锟角猴拷色锟斤拷锟斤拷目锟侥撅拷也锟角猴拷色锟斤拷锟斤拷锟斤拷原图锟斤拷锟叫撅拷锟轿筹拷锟斤拷一锟斤拷锟斤拷色锟斤拷围锟斤拷锟斤拷圆锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷锟斤拷锟角匡拷一锟斤拷WM_PAINT锟斤拷锟斤拷锟斤拷锟津。此筹拷锟斤拷同时锟侥憋拷锟斤拷选锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟叫碉拷图锟斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷值锟斤拷锟酵硷拷锟斤拷锟斤拷锟紹itBlt锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷魔锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟接达拷锟斤拷执锟斤拷锟斤拷锟街碉拷锟斤拷图锟斤拷BitBlt锟斤拷
BitBlt (hdc, x, y, cxBitmap, cyBitmap, hdcMemMask, 0, 0, 0x220326) ;
锟斤拷锟斤拷使锟斤拷锟斤拷一锟斤拷没锟斤拷锟斤拷锟狡碉拷位元映锟斤拷锟斤拷锟斤拷锟斤拷呒锟斤拷锟斤拷锟斤拷锟斤拷锟紻 & ~S锟斤拷锟斤拷锟斤拷锟斤拷源锟斤拷锟斤拷锟斤拷锟街碉拷锟斤拷图锟斤拷锟角猴拷色锟斤拷位元值0锟斤拷锟斤拷围锟斤拷一锟斤拷锟斤拷色锟斤拷位元值1锟斤拷锟斤拷圆锟斤拷位元映锟斤拷锟斤拷锟斤拷锟斤拷冉锟斤拷锟皆达拷锟缴拷锟揭诧拷锟斤拷歉某砂锟缴拷锟轿э拷暮锟缴拷锟皆诧拷锟饺伙拷锟轿辉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷转锟斤拷锟斤拷锟斤拷源锟斤拷目锟侥ｏ拷锟斤拷锟接达拷锟较ｏ拷之锟斤拷执锟斤拷位元AND锟斤拷锟斤拷锟斤拷锟斤拷目锟侥猴拷位元值1锟斤拷AND锟斤拷时锟斤拷锟街诧拷锟戒；锟斤拷位元值0锟斤拷AND锟斤拷时锟斤拷目锟侥斤拷锟斤拷凇锟斤拷锟剿ｏ拷BitBlt锟斤拷锟斤拷锟斤拷锟斤拷锟接达拷锟较伙拷一锟斤拷锟斤拷色锟斤拷锟斤拷圆锟斤拷
锟节讹拷锟轿碉拷BitBlt锟斤拷锟斤拷锟斤拷锟斤拷锟接达拷锟叫伙拷锟斤拷图锟斤拷锟斤拷锟酵硷拷锟�
BitBlt (hdc, x, y, cxBitmap, cyBitmap, hdcMemImag, 0, 0, SRCPAINT) ;
位元映锟斤拷锟斤拷锟斤拷锟斤拷锟皆达拷锟侥匡拷锟街拷锟街达拷锟轿辉拷锟絆R锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆达拷锟斤拷锟酵硷拷锟斤拷锟斤拷锟斤拷呛锟缴拷锟斤拷锟剿憋拷锟斤拷目锟侥诧拷锟戒；锟斤拷锟斤拷锟斤拷圆锟斤拷锟斤拷锟节ｏ拷目锟斤拷锟角猴拷色锟斤拷锟斤拷锟酵硷拷锟斤拷原锟解不锟斤拷锟截革拷锟斤拷锟剿癸拷锟斤拷锟斤拷执锟叫斤拷锟斤拷锟酵�14-9锟斤拷示锟斤拷
注锟斤拷锟斤拷锟筋：
锟斤拷时锟斤拷锟斤拷要一锟斤拷锟杰革拷锟接碉拷锟斤拷锟街ｏ拷锟斤拷锟界，抹去原始图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭拷诨锟酵硷拷锟绞斤拷锟斤拷止锟斤拷锟斤拷锟饺伙拷峤拷浯拷娴斤拷傻锟斤拷锟斤拷锟�
锟斤拷
| 图14-9 BITMASK锟斤拷萤幕锟斤拷示 |
锟斤拷锟斤拷锟斤拷锟轿猈indows NT锟斤拷写锟斤拷锟狡碉拷应锟矫筹拷式锟斤拷锟斤拷么锟斤拷锟斤拷锟斤拷使锟斤拷锟斤拷MASKBIT锟斤拷式锟斤拷锟狡碉拷MaskBlt锟斤拷式锟斤拷锟斤拷只锟斤拷要锟斤拷锟劫的猴拷式锟斤拷锟叫★拷Windows NT锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷BitBlt锟侥猴拷式锟斤拷Windows 98锟斤拷支援锟矫猴拷式锟斤拷锟剿猴拷式锟斤拷PlgBlt锟斤拷锟斤拷平锟斤拷锟侥憋拷锟斤拷位元锟斤拷锟狡讹拷锟斤拷parallelogram blt锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞斤拷锟斤拷远锟酵硷拷锟斤拷锟斤拷锟斤拷转锟斤拷锟斤拷锟斤拷斜锟斤拷锟斤拷图图锟斤拷
锟斤拷锟结，锟斤拷锟斤拷锟斤拷锟斤拷幕锟斤拷锟斤拷锟街达拷锟紹ITMASK锟斤拷式锟斤拷锟斤拷锟斤拷只锟结看锟斤拷锟斤拷色锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷锟斤拷色锟斤拷锟斤拷影锟斤拷锟斤拷锟斤拷锟斤拷为锟斤拷执锟叫碉拷锟斤拷示模式锟斤拷16色锟斤拷256色锟斤拷锟斤拷锟�16色模式锟斤拷锟斤拷示效锟斤拷锟睫凤拷锟侥斤拷锟斤拷锟斤拷锟斤拷256色模式锟铰匡拷锟皆改憋拷锟缴拷锟斤拷锟斤拷锟绞撅拷医住锟斤拷锟斤拷锟斤拷诘锟绞拷锟斤拷锟窖э拷锟斤拷锟斤拷锟借定锟斤拷色锟教★拷
锟津单的讹拷锟斤拷
锟斤拷
小锟脚的碉拷锟斤拷图锟斤拷示锟斤拷锟斤拷锟角筹拷锟届，锟斤拷丝锟斤拷越锟斤拷锟斤拷锟酵硷拷锟絎indows锟斤拷时锟斤拷锟斤拷锟斤拷使锟矫ｏ拷锟斤拷锟斤拷锟揭恍╋拷锟斤拷锟斤拷亩锟斤拷锟斤拷锟�
锟斤拷锟节匡拷始锟斤拷锟斤拷锟斤拷锟斤拷式锟斤拷
BOUNCE锟斤拷式锟斤拷锟斤拷锟绞�14-10锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟接达拷锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷去锟斤拷小锟津。该筹拷式锟斤拷锟矫硷拷时锟斤拷锟斤拷锟斤拷锟斤拷小锟斤拷锟斤拷薪锟斤拷俣取锟叫★拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟酵硷拷锟斤拷锟绞斤拷锟斤拷锟酵拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵硷拷锟斤拷锟斤拷锟叫★拷颍锟斤拷锟窖★拷锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷荩锟饺伙拷锟斤拷锟斤拷一些锟津单碉拷GDI锟斤拷式锟斤拷锟斤拷式锟斤拷BitBlt锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷斤拷锟斤拷锟斤拷锟斤拷锟酵夹★拷蚧锟斤拷锟绞撅拷锟斤拷稀锟�
锟斤拷式14-10 BOUNCE
BOUNCE.C
/*---------------------------------------------------------------------------
BOUNCE.C -- Bouncing Ball Program
(c) Charles Petzold, 1998
----------------------------------------------------------------------------*/
#include <windows.h>
#define ID_TIMER 1
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT ("Bounce") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox ( NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow ( szAppName, TEXT ("Bouncing Ball"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
static HBITMAP hBitmap ;
static int cxClient, cyClient, xCenter, yCenter, cxTotal, cyTotal,
cxRadius, cyRadius, cxMove, cyMove, xPixel, yPixel ;
HBRUSH hBrush ;
HDC hdc, hdcMem ;
int iScale ;
switch (iMsg)
{
case WM_CREATE:
hdc = GetDC (hwnd) ;
xPixel = GetDeviceCaps (hdc, ASPECTX) ;
yPixel = GetDeviceCaps (hdc, ASPECTY) ;
ReleaseDC (hwnd, hdc) ;
SetTimer (hwnd, ID_TIMER, 50, NULL) ;
return 0 ;
case WM_SIZE:
xCenter = (cxClient = LOWORD (lParam)) / 2 ;
yCenter = (cyClient = HIWORD (lParam)) / 2 ;
iScale = min (cxClient * xPixel, cyClient * yPixel) / 16 ;
cxRadius = iScale / xPixel ;
cyRadius = iScale / yPixel ;
cxMove = max (1, cxRadius / 2) ;
cyMove = max (1, cyRadius / 2) ;
cxTotal = 2 * (cxRadius + cxMove) ;
cyTotal = 2 * (cyRadius + cyMove) ;
if (hBitmap)
DeleteObject (hBitmap) ;
hdc = GetDC (hwnd) ;
hdcMem = CreateCompatibleDC (hdc) ;
hBitmap = CreateCompatibleBitmap (hdc, cxTotal, cyTotal) ;
ReleaseDC (hwnd, hdc) ;
SelectObject (hdcMem, hBitmap) ;
Rectangle (hdcMem, -1, -1, cxTotal + 1, cyTotal + 1) ;
hBrush = CreateHatchBrush (HS_DIAGCROSS, 0L) ;
SelectObject (hdcMem, hBrush) ;
SetBkColor (hdcMem, RGB (255, 0, 255)) ;
Ellipse (hdcMem, cxMove, cyMove, cxTotal - cxMove, cyTotal - cyMove) ;
DeleteDC (hdcMem) ;
DeleteObject (hBrush) ;
return 0 ;
case WM_TIMER:
if (!hBitmap)
break ;
hdc = GetDC (hwnd) ;
hdcMem = CreateCompatibleDC (hdc) ;
SelectObject (hdcMem, hBitmap) ;
BitBlt (hdc, xCenter - cxTotal / 2,
yCenter - cyTotal / 2, cxTotal, cyTotal,
hdcMem, 0, 0, SRCCOPY) ;
ReleaseDC (hwnd, hdc) ;
DeleteDC (hdcMem) ;
xCenter += cxMove ;
yCenter += cyMove ;
if ((xCenter + cxRadius >= cxClient) || (xCenter - cxRadius <= 0))
cxMove = -cxMove ;
if ((yCenter + cyRadius >= cyClient) || (yCenter - cyRadius <= 0))
cyMove = -cyMove ;
return 0 ;
case WM_DESTROY:
if (hBitmap)
DeleteObject (hBitmap) ;
KillTimer (hwnd, ID_TIMER) ;
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, iMsg, wParam, lParam) ;
}
BOUNCE每锟斤拷锟秸碉拷一锟斤拷WM_SIZE讯息时锟斤拷锟截伙拷小锟斤拷锟斤拷锟斤拷锟揭拷锟斤拷锟窖讹拷锟绞撅拷锟斤拷锟斤拷莸募锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷荩锟�
hdcMem = CreateCompatibleDC (hdc) ;
小锟斤拷锟街憋拷锟斤拷锟轿拷哟锟斤拷锟绞撅拷锟斤拷锟竭度伙拷锟斤拷锟斤拷薪隙锟斤拷叩锟绞拷锟斤拷锟街伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞斤拷锟斤拷锟侥碉拷锟斤拷图却锟斤拷小锟斤拷螅捍拥锟斤拷锟酵硷拷锟斤拷牡锟斤拷锟斤拷锟酵硷拷母锟斤拷叩木锟斤拷锟斤拷锟叫★拷锟诫径锟斤拷1.5锟斤拷锟斤拷
hBitmap = CreateCompatibleBitmap (hdc, cxTotal, cyTotal) ;
锟斤拷锟斤拷锟斤拷图选锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟结，锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷砂锟缴拷锟�
Rectangle (hdcMem, -1, -1, xTotal + 1, yTotal + 1) ;
锟斤拷些锟斤拷锟教讹拷锟斤拷锟斤拷锟斤拷使锟斤拷锟轿边匡拷锟节碉拷锟斤拷图之锟斤拷锟斤拷色锟斤拷一锟斤拷锟皆斤拷锟竭匡拷锟节的伙拷刷选锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷ｏ拷锟斤拷锟斤拷小锟斤拷锟节碉拷锟斤拷图锟斤拷锟斤拷锟诫：
Ellipse (hdcMem, xMove, yMove, xTotal - xMove, yTotal - yMove) ;
锟斤拷小锟斤拷锟狡讹拷时锟斤拷小锟斤拷呓锟侥空白伙拷锟斤拷效锟斤拷删锟斤拷前一时锟教碉拷小锟斤拷图锟斤拷锟斤拷锟斤拷一锟斤拷位锟斤拷锟截伙拷小锟斤拷只锟斤拷锟斤拷BitBlt锟斤拷锟斤拷锟斤拷使锟斤拷SRCCOPY锟斤拷ROP锟斤拷锟诫：
BitBlt (hdc, xCenter - cxTotal / 2, yCenter - cyTotal / 2, cxTotal, cyTotal,
hdcMem, 0, 0, SRCCOPY) ;
BOUNCE锟斤拷式只锟斤拷展示锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷锟狡讹拷图锟斤拷锟斤拷锟津单的凤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷拢锟斤拷锟斤拷址锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷狻ｏ拷锟斤拷锟斤拷锟皆讹拷锟斤拷锟斤拷锟斤拷趣锟斤拷锟斤拷么锟斤拷锟斤拷锟斤拷锟斤拷源锟斤拷目锟斤拷之锟斤拷执锟叫伙拷锟斤拷锟斤拷锟斤拷猓拷锟斤拷锟接︼拷锟斤拷芯锟斤拷锟斤拷锟斤拷锟絉OP锟斤拷锟诫（锟斤拷锟斤拷SRCINVERT锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷Windows锟斤拷色锟教ｏ拷锟皆硷拷AnimatePalette锟斤拷式锟斤拷锟斤拷CreateDIBSection锟斤拷式锟斤拷锟斤拷於革拷锟竭硷拷锟侥讹拷锟斤拷锟斤拷只锟矫凤拷锟斤拷GDI锟斤拷使锟斤拷DirectX锟斤拷锟斤拷锟剿★拷
锟接达拷锟斤拷牡锟斤拷锟酵�
锟斤拷
SCRAMBLE锟斤拷式锟斤拷锟斤拷锟绞�14-11锟斤拷示锟斤拷锟斤拷写锟角筹拷锟街糙ｏ拷锟揭憋拷锟斤拷锟斤拷应锟斤拷展示锟斤拷锟斤拷锟绞斤拷锟斤拷锟斤拷锟绞撅拷锟斤拷锟揭恍╋拷锟饺わ拷募锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷诮锟斤拷锟斤拷锟斤拷锟斤拷锟绞撅拷锟斤拷锟斤拷锟斤拷莸锟紹itBlt锟斤拷锟斤拷锟侥筹拷锟斤拷锟叫ｏ拷锟矫硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟斤拷锟斤拷为锟斤拷时锟斤拷锟斤拷占洹�
锟斤拷式14-11 SCRAMBLE
SCRAMBLE.C
/*---------------------------------------------------------------------------
SCRAMBLE.C -- Scramble (and Unscramble) Screen
(c) Charles Petzold, 1998
-----------------------------------------------------------------------------*/
#include <windows.h>
#define NUM 300
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static int iKeep [NUM][4] ;
HDC hdcScr, hdcMem ;
int cx, cy ;
HBITMAP hBitmap ;
HWND hwnd ;
int i, j, x1, y1, x2, y2 ;
if (LockWindowUpdate (hwnd = GetDesktopWindow ()))
{
hdcScr = GetDCEx (hwnd, NULL, DCX_CACHE | DCX_LOCKWINDOWUPDATE) ;
hdcMem = CreateCompatibleDC (hdcScr) ;
cx = GetSystemMetrics (SM_CXSCREEN) / 10 ;
cy = GetSystemMetrics (SM_CYSCREEN) / 10 ;
hBitmap = CreateCompatibleBitmap (hdcScr, cx, cy) ;
SelectObject (hdcMem, hBitmap) ;
srand ((int) GetCurrentTime ()) ;
for (i = 0 ; i < 2 ; i++)
for (j = 0 ; j < NUM ; j++)
{
if (i == 0)
{
iKeep [j] [0] = x1 = cx * (rand () % 10) ;
iKeep [j] [1] = y1 = cy * (rand () % 10) ;
iKeep [j] [2] = x2 = cx * (rand () % 10) ;
iKeep [j] [3] = y2 = cy * (rand () % 10) ;
}
else
{
x1 = iKeep [NUM - 1 - j] [0] ;
y1 = iKeep [NUM - 1 - j] [1] ;
x2 = iKeep [NUM - 1 - j] [2] ;
y2 = iKeep [NUM - 1 - j] [3] ;
}
BitBlt (hdcMem, 0, 0, cx, cy, hdcScr, x1, y1, SRCCOPY) ;
BitBlt (hdcScr, x1, y1, cx, cy, hdcScr, x2, y2, SRCCOPY) ;
BitBlt (hdcScr, x2, y2, cx, cy, hdcMem, 0, 0, SRCCOPY) ;
Sleep (10) ;
}
DeleteDC (hdcMem) ;
ReleaseDC (hwnd, hdcScr) ;
DeleteObject (hBitmap) ;
LockWindowUpdate (NULL) ;
}
return FALSE ;
}
SCRAMBLE没锟斤拷锟接达拷讯息锟斤拷锟斤拷锟斤拷式锟斤拷锟斤拷WinMain锟叫ｏ拷锟斤拷锟斤拷锟饺猴拷锟叫达拷锟斤拷锟斤拷锟斤拷锟接达拷锟斤拷锟脚碉拷LockWindowUpdate锟斤拷锟剿猴拷式锟斤拷时锟斤拷止锟斤拷锟斤拷锟斤拷式锟斤拷锟斤拷萤幕锟斤拷然锟斤拷SCRAMBLE通锟斤拷锟斤拷锟叫达拷锟叫诧拷锟斤拷DCX_LOCKWINDOWUPDATE锟斤拷GetDCEx锟斤拷锟斤拷锟斤拷锟斤拷锟接┠伙拷锟阶帮拷锟斤拷锟斤拷荨锟斤拷锟斤拷锟斤拷锟街伙拷锟絊CRAMBLE锟斤拷锟皆革拷锟斤拷萤幕锟剿★拷
然锟斤拷SCRAMBLE确锟斤拷全萤幕锟侥尺寸，锟斤拷锟斤拷锟斤拷锟斤拷锟街憋拷锟斤拷锟�10锟斤拷锟斤拷式锟斤拷锟斤拷锟斤拷叽纾拷锟斤拷锟斤拷锟絚x锟斤拷cy锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟斤拷锟矫碉拷锟斤拷图选锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷★拷
使锟斤拷C锟斤拷锟皆碉拷rand锟斤拷式锟斤拷SCRAMBLE锟斤拷锟斤拷锟斤拷母锟斤拷锟斤拷值锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷悖╋拷锟轿猚x锟斤拷cy锟侥憋拷锟斤拷锟斤拷锟斤拷式透锟斤拷锟斤拷锟轿猴拷锟斤拷BitBlt锟斤拷式锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿匡拷锟斤拷锟斤拷示锟斤拷锟斤拷锟捷★拷锟斤拷一锟轿斤拷锟接碉拷一锟斤拷锟斤拷锟斤拷憧硷拷木锟斤拷胃锟斤拷频锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷荨锟斤拷诙锟斤拷锟紹itBlt锟斤拷锟接第讹拷锟斤拷锟斤拷憧硷拷木锟斤拷胃锟斤拷频锟斤拷锟揭伙拷憧硷拷锟轿伙拷谩锟斤拷锟斤拷锟斤拷谓锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷锟斤拷械木锟斤拷胃锟斤拷频锟斤拷诙锟斤拷锟斤拷锟斤拷锟姐开始锟斤拷锟斤拷锟斤拷
锟剿筹拷锟斤拷锟斤拷效锟截斤拷锟斤拷锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫碉拷锟斤拷锟捷★拷SCRAMBLE执锟斤拷300锟轿斤拷锟斤拷锟斤拷锟斤拷时锟斤拷萤幕锟斤拷示锟较讹拷锟斤拷一锟斤拷锟姐。锟斤拷锟斤拷锟矫碉拷锟侥ｏ拷锟斤拷为SCRAMBLE锟角碉拷锟斤拷锟斤拷么锟斤拷锟斤拷示弄锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷模锟斤拷锟斤拷锟斤拷锟斤拷顺锟角帮拷锟斤拷岚达拷喾达拷拇锟斤拷锟街革拷原锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷锟斤拷萤幕前锟侥伙拷锟芥）!
锟斤拷也锟斤拷锟斤拷锟矫硷拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷斤拷一锟斤拷锟斤拷锟斤拷图锟斤拷锟狡革拷锟斤拷一锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟界，锟劫讹拷锟斤拷要锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷图锟斤拷锟矫碉拷锟斤拷图只锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷图锟斤拷锟较角碉拷图锟轿★拷锟斤拷锟皆拷锟斤拷锟酵硷拷锟斤拷锟斤拷为hBitmap锟斤拷锟斤拷么锟斤拷锟斤拷锟皆斤拷锟斤拷叽绺达拷频锟揭伙拷锟紹ITMAP锟斤拷态锟侥结构锟叫ｏ拷
GetObject (hBitmap, sizeof (BITMAP), &bm) ;
然锟结建锟斤拷一锟斤拷未锟斤拷始锟斤拷锟斤拷锟铰碉拷锟斤拷图锟斤拷锟矫碉拷锟斤拷图锟侥尺达拷锟斤拷原锟斤拷图锟斤拷1/4锟斤拷
hBitmap2 = CreateBitmap ( bm.bmWidth / 2, bm.bmHeight / 2,
bm.bmPlanes, bm.bmBitsPixel, NULL) ;
锟斤拷锟节斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷装锟斤拷锟斤拷锟捷ｏ拷锟斤拷锟斤拷原锟斤拷锟斤拷锟斤拷图锟斤拷锟铰碉拷锟斤拷图选锟街憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟阶帮拷锟斤拷锟斤拷荩锟�
hdcMem1 = CreateCompatibleDC (hdc) ; hdcMem2 = CreateCompatibleDC (hdc) ; SelectObject (hdcMem1, hBitmap) ; SelectObject (hdcMem2, hBitmap2) ;
锟斤拷锟结，锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟较角革拷锟狡革拷锟节讹拷锟斤拷锟斤拷
BitBlt ( hdcMem2, 0, 0, bm.bmWidth / 2, bm.bmHeight / 2,
hdcMem1, 0, 0, SRCCOPY) ;
剩锟铰碉拷只锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�
DeleteDC (hdcMem1) ; DeleteDC (hdcMem2) ; DeleteObject (hBitmap) ;
BLOWUP.C锟斤拷式锟斤拷锟斤拷图14-21锟斤拷示锟斤拷也锟斤拷锟接达拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟节筹拷式锟接达拷之锟斤拷锟斤拷示一锟斤拷锟斤拷捉锟侥撅拷锟轿★拷锟剿筹拷式锟斤拷锟斤拷使锟斤拷锟斤拷锟矫伙拷锟斤拷圈选萤幕锟较的撅拷锟斤拷锟斤拷锟斤拷然锟斤拷BLOWUP锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷莞锟斤拷频锟斤拷锟斤拷锟酵硷拷锟斤拷锟絎M_PAINT讯息锟斤拷锟斤拷锟节间，锟斤拷锟斤拷图锟斤拷锟狡碉拷锟斤拷式锟斤拷锟斤拷示锟斤拷锟津，憋拷要时锟斤拷锟斤拷锟斤拷锟窖癸拷锟斤拷锟斤拷锟斤拷渭锟斤拷锟绞�14-12锟斤拷锟斤拷
锟斤拷式14-12 BLOWUP
BLOWUP.C
/*--------------------------------------------------------------------------
BLOWUP.C -- Video Magnifier Program
(c) Charles Petzold, 1998
----------------------------------------------------------------------------*/
#include <windows.h>
#include <stdlib.h> // for abs definition
#include "resource.h"
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hI