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I have these lines of code:

CExtPopupMenuWnd * pPopup = new CExtPopupMenuWnd;
VERIFY( pPopup -> ItemInsert( (UINT)CExtPopupMenuWnd::TYPE_POPUP, -1, _T( "test" ), 0, m_hWnd ) );
VERIFY( pPopup->TrackPopupMenu( 0, point.x, point.y ) );

This code is called on a right click on a tree control, and the m_hWnd is the tree control window handle.

I get an assert in the file extpopupmenuwnd.cpp at line 12153:

ASSERT( m_hWndCmdReceiver != NULL );

If I load a menu resource it works.

Any idea why this is happening?

Thanks,

Adrian

Before inserting items into a pop-up menu, don’t forget to create it first:

CExtPopupMenuWnd * pPopup = new CExtPopupMenuWnd;
pPopup->CreatePopupMenu( m_hWnd );
VERIFY( pPopup->ItemInsert(
   (UINT)CExtPopupMenuWnd::TYPE_POPUP,
   -1,
   _T( "test" ),
   0,
   m_hWnd
   )
);
ScreenToClient( &point );
VERIFY( pPopup->TrackPopupMenu( 0, point.x, point.y ) );

This works. Thanks for your reply!

As a side note, I based my code on the help topic "How to use popup menus in your application", which is missing the information that the method CreatePopupMenu must be called.

Adrian

The CExtPopupMenuWnd::CreatePopupMenu method works similar to CMenu::CreatePopupMenu. When you dynamically create an MFC pop-up menu, you also need to call CreatePopupMenu() before adding any item to the menu.