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CFrameWnd::m_bAutoMenuEnable 

When this data member is enabled (which is the default), menu items that do not have ON_UPDATE_COMMAND_UI or ON_COMMAND handlers will be automatically disabled when the user pulls down a menu.


BOOL m_bAutoMenuEnable;

Menu items that have an ON_COMMAND handler but no ON_UPDATE_COMMAND_UI handler will be automatically enabled.

When this data member is set, menu items are automatically enabled in the same way that toolbar buttons are enabled.

NoteNote

m_bAutoMenuEnable has no effect on top-level menu items.

This data member simplifies the implementation of optional commands based on the current selection and reduces the need to write ON_UPDATE_COMMAND_UI handlers for enabling and disabling menu items.

CMainFrame::CMainFrame()
{
   // Set to FALSE so no ON_UPDATE_COMMAND_UI or
   // ON_COMMAND handlers are needed, and
   // CMenu::EnableMenuItem() will work as expected.
   m_bAutoMenuEnable  = FALSE;
}
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