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PHP5中文手册
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
返回值无返回值。 |