frame transparency for Cocoa

[Seiji Zenitani]

Hi,

Here is a frame-wide transparency code for Cocoa port.
The syntax is the same as X port and w32 port.

As far as I tested, this one seamlessly coexists with
NS port's face-transparency (e.g. ns-set-background-alpha) on OSX 10.5.
Could anyone test the compatibility with GNUstep?
(It should do nothing on GNUstep.)

best wishes,
Seiji

transparency.patch
Description: Binary data

2008-11-23  Seiji Zenitani  <address@hidden>

        * frame.c (x_set_alpha) [NS_IMPL_COCOA]: Call x_set_frame_alpha.

        * nsfns.m (ns_frame_parm_handlers): Set alpha handler.

        * nsterm.m (x_set_frame_alpha): New function.