+class CWindowMaskClrMask;
+class CWindowMaskButton;
+class CWindowMaskThumbler;
+class CWindowMaskEnable;
+class CWindowMaskFade;
+class CWindowMaskFadeSlider;
+class CWindowMaskGangFader;
+class CWindowMaskGangFocus;
+class CWindowMaskGangPoint;
+class CWindowMaskSmoothButton;