c++visual-studio-2013mfcdrawingcmenu

C++ CMenu Drawing Incorrectly (Non-custom)

I currently am attempting to do something simple:

CMenu menu;
menu.LoadMenu(IDR_MENU_IMAGE);
CPoint pt;
GetCursorPos(&pt); 
menu.TrackPopupMenu(TPM_RIGHTBUTTON, pt.x, pt.y, this);

When I right-click, I get the below image. However, the menu is loaded; as I move my cursor down the menu, you can see it populate sub-menus just fine. It does this with any menu I load dynamically like this. I attempted to create a pointer (CMenu*) and still continue having this problem.

The points don't matter (I input arbitrary points).

The "this" in question is a derived CView* class. I am clicking on a HWND object but I tried to also take the CWnd::FromHandle() of this particular object I am clicking on and having the object handle it, but I still have the same problem.

My top menu structure and all other menus work - it is only in this particular case.

I don't really want to derive a C++ CMenu class just to override the MeasureItem function when the original menus should actually be working, and do work fine in other versions..

Help?

enter image description here

Solution

  • Use GetSubMenu(0) to obtain a popup handle:

    CMenu menu;
menu.LoadMenu(IDR_MENU_IMAGE);
CMenu *submenu = menu.GetSubMenu(0);
if (submenu)
    submenu->TrackPopupMenu(TPM_RIGHTBUTTON, pt.x, pt.y, this);

    Where IDR_MENU_IMAGE is created in resource editor similar to the following:

    IDR_MENU_IMAGE MENU
BEGIN
    POPUP "File"
    BEGIN
        MENUITEM "New",                         ID_FILE_NEW
        MENUITEM "Open",                        ID_FILE_OPEN
        MENUITEM "Save",                        ID_FILE_SAVE
        MENUITEM "Save As ...",                 ID_FILE_SAVEAS
    END
END

    Result:

    enter image description here

    Note, this won't work if there is only a "menu bar", and no popup. The menu below cannot be created as popup:

    IDR_MENU_IMAGE MENU //no popup menu!
BEGIN
    MENUITEM "A", IDA
    MENUITEM "B", IDB
    MENUITEM "C", IDC
END

    You can also create the popup menu as follows:

    CMenu menu;
menu.CreatePopupMenu();
menu.AppendMenu(MF_STRING, ID_FILE_NEW, "New");
menu.TrackPopupMenu(TPM_RIGHTBUTTON, p.x, p.y, this);