ignore = CGSCreateBoolean( (flag ? kCGSTrue : kCGSFalse) );
CGSSetWindowProperty([NSApp contextID], (CGSWindowID)[self windowNumber], key, ignore);
CGSReleaseObj(key);
ignore = CGSCreateBoolean( (flag ? kCGSTrue : kCGSFalse) );
CGSSetWindowProperty([NSApp contextID], (CGSWindowID)[self windowNumber], key, ignore);
CGSReleaseObj(key);