void CMainFrame::OnContextMenu(CWnd* pWnd, CPoint point) 
{
	// TODO: Add your message handler code here
	CMenu menu;
	if(menu.LoadMenu(IDR_POPUP_MENU))
	{
	    CMenu *pPopup=menu.GetSubMenu(0);
	    pPopup->TrackPopupMenu(TPM_LEFTALIGN|TPM_RIGHTBUTTON, point.x, point.y,this);
	}
}
