VC MFC, Dynamic Menu Creation in MDI App

bluejac..
#1 / 5

Dynamic Menu Creation in MDI App

Hello Netlanders,
I have to dynamically create a menu for my MDI App.When i use GetMenu() on
the OnCreate() handler in the CMainFrame class it gets the mainframe menu
i.e IDR_MAINFRAME.I want to modify the IDR_<appname>TYPE menu.If i modify it
using LoadMenu() in the OnCreate() Handler i dont see any change.What i have
to do to modify the menu and where to place the code.The code snippet is
int count;
char temp[13];
CMenu *pMenu = new CMenu();
CMenu *sMenu = new CMenu();

if(pMenu->LoadMenu(IDR_IETYPE))
pMenu = pMenu->GetSubMenu(3);
count = pMenu->GetMenuItemCount();
wsprintf(temp,"%d",count);
MessageBox(temp);
if(pMenu)
{
pMenu->AppendMenu(MF_STRING|MF_ENABLED,ID_MENU,"Naveen");
MessageBox("Menu Appended");
}
count = pMenu->GetMenuItemCount();
wsprintf(temp,"%d",count);
MessageBox(temp);
DrawMenuBar();
pMenu->DestroyMenu();

Tue, 01 Nov 2005 01:33:09 GMT

David Lownde
#2 / 5

Dynamic Menu Creation in MDI App

Quote:

>I have to dynamically create a menu for my MDI App.When i use GetMenu() on
>the OnCreate() handler in the CMainFrame class it gets the mainframe menu
>i.e IDR_MAINFRAME.I want to modify the IDR_<appname>TYPE menu.If i modify it
>using LoadMenu() in the OnCreate() Handler i dont see any change.

An MDI application reloads the document menu when the active MDI
window changes - so presumably that's why you don't see your changes.

I'm not sure of the details, but presumably MFC reloads the menu after
processing the WM_MDIACTIVATE message.

Dave
--
MVP VC++ FAQ: http://www.mvps.org/vcfaq

Tue, 01 Nov 2005 15:16:24 GMT

Ajay Kalr
#3 / 5

Dynamic Menu Creation in MDI App

You have to modify the menu of the corresponding doctemplate. This menu
handle is a public member of CMultiDoctemplate(m_hMenuShared).

--
Ajay Kalra [MVP - VC++]

Quote:

> Hello Netlanders,
> I have to dynamically create a menu for my MDI App.When i use GetMenu() on
> the OnCreate() handler in the CMainFrame class it gets the mainframe menu
> i.e IDR_MAINFRAME.I want to modify the IDR_<appname>TYPE menu.If i modify
it
> using LoadMenu() in the OnCreate() Handler i dont see any change.What i
have
> to do to modify the menu and where to place the code.The code snippet is
> int count;
> char temp[13];
> CMenu *pMenu = new CMenu();
> CMenu *sMenu = new CMenu();

> if(pMenu->LoadMenu(IDR_IETYPE))
> pMenu = pMenu->GetSubMenu(3);
> count = pMenu->GetMenuItemCount();
> wsprintf(temp,"%d",count);
> MessageBox(temp);
> if(pMenu)
> {
> pMenu->AppendMenu(MF_STRING|MF_ENABLED,ID_MENU,"Naveen");
> MessageBox("Menu Appended");
> }
> count = pMenu->GetMenuItemCount();
> wsprintf(temp,"%d",count);
> MessageBox(temp);
> DrawMenuBar();
> pMenu->DestroyMenu();

Wed, 02 Nov 2005 01:15:07 GMT

jiangshen
#4 / 5

Dynamic Menu Creation in MDI App

another way is to override the undocumented virtual function
CDocument::GetDefaultMenu() to allow the document to determine which menu to
display.
Knowledge Base
Q145857 How to Use Multiple Menus in MFC App That Uses GetDefaultMenu

Quote:

> Hello Netlanders,
> I have to dynamically create a menu for my MDI App.When i use GetMenu() on
> the OnCreate() handler in the CMainFrame class it gets the mainframe menu
> i.e IDR_MAINFRAME.I want to modify the IDR_<appname>TYPE menu.If i modify
it
> using LoadMenu() in the OnCreate() Handler i dont see any change.What i
have
> to do to modify the menu and where to place the code.The code snippet is
> int count;
> char temp[13];
> CMenu *pMenu = new CMenu();
> CMenu *sMenu = new CMenu();

> if(pMenu->LoadMenu(IDR_IETYPE))
> pMenu = pMenu->GetSubMenu(3);
> count = pMenu->GetMenuItemCount();
> wsprintf(temp,"%d",count);
> MessageBox(temp);
> if(pMenu)
> {
> pMenu->AppendMenu(MF_STRING|MF_ENABLED,ID_MENU,"Naveen");
> MessageBox("Menu Appended");
> }
> count = pMenu->GetMenuItemCount();
> wsprintf(temp,"%d",count);
> MessageBox(temp);
> DrawMenuBar();
> pMenu->DestroyMenu();

Thu, 03 Nov 2005 17:46:42 GMT

Martha Wieczorek [MSF
#5 / 5

Dynamic Menu Creation in MDI App

Look on: MVP VC++ FAQ: http://www.mvps.org/vcfaq/mfc/3.htm

--------------------

Quote:

>Subject: Re: Dynamic Menu Creation in MDI App
>Date: Fri, 16 May 2003 10:15:07 -0700
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>You have to modify the menu of the corresponding doctemplate. This menu
>handle is a public member of CMultiDoctemplate(m_hMenuShared).

>--
>Ajay Kalra [MVP - VC++]

>> Hello Netlanders,
>> I have to dynamically create a menu for my MDI App.When i use GetMenu() on
>> the OnCreate() handler in the CMainFrame class it gets the mainframe menu
>> i.e IDR_MAINFRAME.I want to modify the IDR_<appname>TYPE menu.If i modify
>it
>> using LoadMenu() in the OnCreate() Handler i dont see any change.What i
>have
>> to do to modify the menu and where to place the code.The code snippet is
>> int count;
>> char temp[13];
>> CMenu *pMenu = new CMenu();
>> CMenu *sMenu = new CMenu();

>> if(pMenu->LoadMenu(IDR_IETYPE))
>> pMenu = pMenu->GetSubMenu(3);
>> count = pMenu->GetMenuItemCount();
>> wsprintf(temp,"%d",count);
>> MessageBox(temp);
>> if(pMenu)
>> {
>> pMenu->AppendMenu(MF_STRING|MF_ENABLED,ID_MENU,"Naveen");
>> MessageBox("Menu Appended");
>> }
>> count = pMenu->GetMenuItemCount();
>> wsprintf(temp,"%d",count);
>> MessageBox(temp);
>> DrawMenuBar();
>> pMenu->DestroyMenu();

--

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Mon, 07 Nov 2005 01:31:22 GMT