Add a section of a cubic Bézier curve described by the three given control
points to the current path.
Parameters
- psdoc
Resource identifier of the postscript file
as returned by ps_new().
- x1
x-coordinate of first control point.
- y1
y-coordinate of first control point.
- x2
x-coordinate of second control point.
- y2
y-coordinate of second control point.
- x3
x-coordinate of third control point.
- y3
y-coordinate of third control point.
Return Values
Returns TRUE
on success or FALSE
on failure.