class CWindowMaskMode;
class CWindowMaskDelMask;
class CWindowMaskAffectedPoint;
class CWindowMaskDelPoint;
class CWindowMaskFeather;
class CWindowMaskFeatherSlider;
class CWindowMaskMode;
class CWindowMaskDelMask;
class CWindowMaskAffectedPoint;
class CWindowMaskDelPoint;
class CWindowMaskFeather;
class CWindowMaskFeatherSlider;