ps_setgray
(PECL ps >= 1.1.0)
ps_setgray — Sets gray value
Description
   bool ps_setgray
    ( resource $psdoc
   , float $gray
   )
  Sets the gray value for all following drawing operations.
Parameters
- psdoc
- 
      Resource identifier of the postscript file as returned by ps_new(). 
- gray
- 
      The value must be between 0 (white) and 1 (black). 
Return Values
Returns TRUE on success or FALSE on failure.