Disable submenu of hmenu mfc

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I t5ried to disable a button of hmenu but it doesn't work..

What I have tried:

I tried:

HMENU hMenu = ::LoadMenu(GetModuleHandle(NULL), MAKEINTRESOURCE(IDR_MENU1));
	EnableMenuItem(hMenu, 0, MF_DISABLED | MF_GRAYED | MF_BYPOSITION);

Posted 20-Sep-20 20:55pm

Member 14594285

Updated 20-Sep-20 22:13pm

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Shao Voon Wong 21-Sep-20 3:35am

Is your MFC application a SDI/MDI application?

2 solutions

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Richard MacCutchan · Answer 1 · 2020-09-20T21:56:00

It appears that calling LoadMenu returns something different than what is required. I just tried a few experiments and the following code does work:

C++

hMenu = GetMenu(hWnd);  // get the top level menu*
EnableMenuItem(hMenu, 0, MF_DISABLED | MF_GRAYED | MF_BYPOSITION);

*or use CWnd Class::GetMenu() | Microsoft Docs[^]

[edit]
The issue is that you were using the wrong system call. LoadMenu gets a handle to a menu resource in the executable file. Whereas GetMenu returns a handle to the actual menu object attached to your application's Window.
[/edit]

Shao Voon Wong · Answer 2 · 2020-09-20T22:13:00

Solution 2

I just made a tip about disabling the submenu of MFC SDI application.

Disable MFC SDI/MDI Submenu[^]

Posted 20-Sep-20 22:13pm

Shao Voon Wong