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。