This topic is included for completeness. For more detail see the source code located in the VC\atlmfc\src\mfc folder of your Visual Studio installation.
static BOOL __stdcall ActivatePopupMenu(
   CFrameWnd* pTopFrame,
   CMFCPopupMenu* pPopupMenu
);
Parameters
- [in] pTopFrame 
 
- [in] pPopupMenu 
 
Requirements
Header: afxpopupmenu.h