ps_setgray
(PECL ps:1.1.0-1.1.1)
ps_setgray — Sets gray value
说明
bool ps_setgray
( resource $psdoc
, float $gray
)
Sets the gray value for all following drawing operations.
参数
- psdoc
-
Resource identifier of the postscript file as returned by ps_new().
- gray
-
The value must be between 0 (white) and 1 (black).
返回值
如果成功则返回 TRUE，失败则返回 FALSE。