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

没有返回值。