-extern CGError CGSSetWindowProperty(const CGSConnectionID cid, CGSWindowID wid, const CGSValueObj key, const CGSValueObj value);
-
-extern CGAffineTransform CGAffineTransformMakeRotation(float angle);
-extern CGAffineTransform CGAffineTransformMakeScale(float sx, float sy);
-extern CGAffineTransform CGAffineTransformTranslate(CGAffineTransform t, float tx, float ty);
+extern CGError CGSSetWindowProperty(const CGSConnectionID cid, CGSWindowID wid, const CGSValueObj key, const CGSValueObj value);
+