Fills an area with a shading, which has to be created before with
ps_shading(). This is an alternative way to creating
a pattern from a shading ps_shading_pattern() and using
the pattern as the filling color.
Parameters
- psdoc
Resource identifier of the postscript file
as returned by ps_new().
- shadingid
The identifier of a shading previously created with
ps_shading().
Return Values
Returns TRUE
on success or FALSE
on failure.