Date: 2010apr6
Language: C/C++
Platform: Visual C++
Q. How do I change a menu from the CMainFrame class of my MDI application?
A. Your generated MFC MDI application has two menus:
IDR_MAINFRAME and IDR_MEDIATTYPE. If you do GetMenu() to get a handle
in your CMainFrame's OnCreate() member your changes will disappear
with the menu is changed to IDR_MEDIATTYPE. The solution is to use
ON_UPDATE_COMMAND_UI() like this.
In MainFrm.h:
afx_msg void OnUpdateSomething(CCmdUI* pCmdUI);
In MainFrm.cpp:
ON_COMMAND(ID_SOMETHING, OnUpdateSomething)
...
void CMainFrame::OnUpdateSomething(CCmdUI* pCmdUI)
{
if (pCmdUI == NULL) return;
...
pCmdUI->SetText("<stuff>");
pCmdUI->Enable(<boolean>);
...
}
This is great modify an individual menu item but you want to
add / delete items its doesn't really work.
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