gdi32: Test the "alpha" channel on compatible bitmaps.
[wine] / dlls / ntoskrnl.exe /
drwxr-xr-x   ..
-rw-r--r-- 296 Makefile.in
-rw-r--r-- 17912 ntoskrnl.c
-rw-r--r-- 60655 ntoskrnl.exe.spec