www.pudn.com > CReportCtrl_Demo.zip > PopupMenu.cpp

#include "stdafx.h" 
 
void CmdRouteMenu(CWnd* pWnd,CMenu* pPopupMenu) 
{ 
	CCmdUI state; 
	state.m_pMenu = pPopupMenu; 
	state.m_pParentMenu = pPopupMenu; 
	state.m_nIndexMax = pPopupMenu->GetMenuItemCount(); 
 
	for (state.m_nIndex = 0;  
	     state.m_nIndex < state.m_nIndexMax;  
	     state.m_nIndex++)  
	{ 
		state.m_nID = pPopupMenu->GetMenuItemID(state.m_nIndex); 
 
		// menu separator or invalid cmd - ignore it 
		if (state.m_nID == 0) continue;  
 
		if (state.m_nID == (UINT)-1) 
		{ 
			// possibly a popup menu, route to child menu if so 
			CMenu* pSub=pPopupMenu->GetSubMenu(state.m_nIndex); 
			if(pSub) CmdRouteMenu(pWnd,pSub); 
		} 
		else  
		{ 
			// normal menu item, Auto disable if command is  
			// _not_ a system command. 
			state.m_pSubMenu = NULL; 
			state.DoUpdate(pWnd, FALSE); 
		} 
	} 
} 
 
BOOL PopupMenu(CMenu* pPopupMenu, CWnd* pParentWnd) 
{ 
	CmdRouteMenu(pParentWnd, pPopupMenu); 
	POINT pt; 
	::GetCursorPos(&pt); 
	if (pParentWnd != NULL) 
		pParentWnd->SetForegroundWindow(); 
	BOOL bRes = pPopupMenu->TrackPopupMenu(TPM_RIGHTBUTTON, pt.x, pt.y, pParentWnd, NULL); 
	if (pParentWnd != NULL) 
		pParentWnd->PostMessage(WM_NULL, 0, 0); 
	return bRes; 
} 
 
BOOL PopupMenu(UINT nMenuID, UINT nSubMenuPos, CWnd* pParentWnd) 
{ 
	CMenu menu; 
	if (!menu.LoadMenu(nMenuID)) 
		return FALSE; 
 
	CMenu* pSub = menu.GetSubMenu(nSubMenuPos); 
	if (pSub == NULL) 
		return FALSE; 
 
	return PopupMenu(pSub, pParentWnd); 
}