HRESULT _MenuItemHotTrack(DWORD changeType);
HRESULT _CancelCurrentPopup();
HRESULT _OnPopupSubMenu(IShellMenu * childShellMenu, POINTL * pAt, RECTL * pExclude, BOOL mouseInitiated);
+ HRESULT _BeforeCancelPopup();
HRESULT _DisableMouseTrack(BOOL bDisable);
HRESULT _SetChildBand(CMenuBand * child);
HRESULT _SetParentBand(CMenuBand * parent);