gdi32: Test the "alpha" channel on compatible bitmaps.
[wine] / dlls / winequartz.drv /
drwxr-xr-x   ..
-rw-r--r-- 285 Makefile.in
-rw-r--r-- 1434 quartzdrv_main.c
-rw-r--r-- 14 winequartz.drv.spec