swf_viewport
(PHP 4)
swf_viewport — Select an area for future drawing
说明
void swf_viewport
( float $xmin
, float $xmax
, float $ymin
, float $ymax
)
Selects an area for future drawing for xmin to xmax and ymin to ymax , if this function is not called the area defaults to the size of the screen.
参数
- xmin
-
- xmax
-
- ymin
-
- ymax
-
返回值
无返回值。
