Warning: This function is
currently not documented; only the argument list is
available.
Warning: This function is
EXPERIMENTAL. The behaviour of this function, the
name of this function, and anything else documented about this
function may change without notice in a future release of PHP.
Use this function at your own risk.
Creates a simulated three-dimensional button-like effect
by lightening and darkening the edges of the image.
Members width and height of raise_info define the width
of the vertical and horizontal edge of the effect.
Return Values
Returns TRUE
on success.