+ inline PixmapMask *getCloseButtonMask(void) { return &close_button; }
+ inline PixmapMask *getMaximizeButtonMask(void) { return &max_button; }
+ inline PixmapMask *getIconifyButtonMask(void) { return &icon_button; }
+ inline PixmapMask *getStickyButtonMask(void) { return &stick_button; }
+