Fix CSD check for Win32
authorManuel Bachmann <tarnyko@tarnyko.net>
Wed, 27 Nov 2013 10:14:16 +0000 (11:14 +0100)
committerManuel Bachmann <tarnyko@tarnyko.net>
Wed, 27 Nov 2013 10:24:12 +0000 (11:24 +0100)
commite45ea70936ee30344b96ab99c7651fef58ebd4ff
tree361317fdc77841e4e6aaa7961fe8d1d339582b74
parentc13c74114305a28ce811f95ef4e97084b8fd2b7c
Fix CSD check for Win32

Win32 does not have alpha channel currently ; fix the check
for this, so trying to enable CSDs on this platform will
not "succeed" and crash the app anymore.

Partially fixes gtk3-widget-factory.
gtk/gtkwindow.c