MFC 小知识七 右键菜单

OnRButtonDown(UINT nFlags, CPoint point)
{
// TODO:  在此添加消息处理程序代码和/或调用默认值
rightPoint = point;
if (pMenu == NULL)
{
pMenu = new CMenu();

if (!pMenu->LoadMenu(IDR_MENU_Mantangcai))
{

delete pMenu;
pMenu = NULL;
}
}

CMenu *pSubMenu = pMenu->GetSubMenu(0);
pSubMenu->TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON,
point.x, point.y, this);

CDialogEx::OnRButtonDown(nFlags, point);
}