Form Designer

// MenuHelpers.cpp
//
// Author : David Shepherd
//			Copyright (c) 2002, DaeDoe-Software
//
/////////////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "MenuHelpers.h"

CMenuHandle CreateEmptyPopupMenu(DWORD EmptyTextId)
{
	USES_CONVERSION;

	// create the empty popup menu
	CMenu Menu;
	if(Menu.CreatePopupMenu()==FALSE)
	{
		throw std::exception();
	}
	// insert the empty menu item
	CComBSTR Text;
	if(Text.LoadString(EmptyTextId)==FALSE)
	{
		throw std::exception();
	}
	if(Menu.AppendMenu(
		MF_STRING|MF_GRAYED,0,W2CT(BSTR2W(Text)))==FALSE)
	{
		throw std::exception();
	}
	return Menu.Detach();
}

void SetPopupMenu(CMenuHandle hParent,long ItemId,CMenuHandle hPopup)
{
	// check parameters
	if(hParent==NULL)
	{
		throw std::exception();
	}
	if(hPopup==NULL)
	{
		throw std::exception();
	}
	// get the menu item text length
	long TextLength=hParent.GetMenuStringLen(ItemId,MF_BYCOMMAND);
	if(TextLength==0)
	{
		throw std::exception();
	}
	// get the menu item text
	std::auto_ptr<TCHAR> pText(new TCHAR[TextLength+1]);
	if(hParent.GetMenuString(ItemId,pText.get(),TextLength+1,MF_BYCOMMAND)==0)
	{
		throw std::exception();
	}
	// set the popup menu
	if(hParent.ModifyMenu(ItemId,MF_BYCOMMAND|MF_STRING|MF_POPUP,
		(UINT)(HMENU)hPopup,pText.get())==FALSE)
	{
		throw std::exception();
	}
}