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Dear Support!

I’m trying to disable one of my menu-entries that has a submenu, so it is of type TYPE_POPUP. I understood from some previous thread that I need to disable all entries in that submenu as well before I could disable their "parent". So I put in the UpdateUI handlers of these submenu entries:

pCmdUI->Enable(bSomeCondition);

and in the handler of message CExtPopupMenuWnd::g_nMsgPrepareOneMenuLevel I put the following:

CExtPopupMenuWnd::MsgPrepareMenuData_t *pData =
reinterpret_cast<CExtPopupMenuWnd::MsgPrepareMenuData_t *>( wParam );
ASSERT( pData != NULL );
CExtPopupMenuWnd *pPopup = pData->m_pPopup;
ASSERT( pPopup != NULL );

CExtPopupMenuWnd *pSubPopup;
for (int i = 0; i < pPopup->ItemGetCount(); i++) {
pSubPopup = pPopup->ItemGetPopup(i);
if ( pSubPopup != NULL && pSubPopup->ItemFindPosForCmdID(ID_OF_ONE_SUBMENU_ENTRY) >= 0 )
pPopup->ItemEnabledSet(i, bSomeCondition);
}

In debug mode I can see the ItemEnabledSet is called with the parameters I need, still this "parent" is not disabled, even though all the submenu-entries are. Could you please advise?

I’m using v2.52 with VS2003.

Thank you:
Chris.

A pop-up submenu item becomes disabled automatically if the entire sub tree is disabled. Please check your CExtPopupMenuWnd::g_nMsgPrepareOneMenuLevel registered message handler has the following code at the beginning of the method:

CExtPopupMenuWnd::MsgPrepareMenuData_t * pData =
        reinterpret_cast
        < CExtPopupMenuWnd::MsgPrepareMenuData_t * >
        ( wParam );
    ASSERT( pData != NULL );
CExtPopupMenuWnd * pPopup = pData->m_pPopup;
    ASSERT( pPopup != NULL );
    pData->m_bMenuChanged = true;

To set m_bMenuChanged property to true is important, so please check this.

It did not help:( At the end of my message handler I return 0; as LRESULT...Could that have any connection to this? I even tried to return 1; still no luck.

One more thing popped to my mind... those submenu entries are all commands to ControlBars, so their updater message handlers go like this:

MessageMap:
ON_UPDATE_COMMAND_UI_RANGE(ID_OF_FIRST_SUBENTRY, ID_OF_LAST_SUBENTRY, OnUpdateControlBarMenu)

Handler definition:
void CMainFrame::OnUpdateControlBarMenu(CCmdUI* pCmdUI)
{
if (!(pCmdUI->m_nID < ID_OF_FIRST_SUBENTRY || pCmdUI->m_nID > ID_OF_LAST_SUBENTRY || bSomeCondition))
pCmdUI->Enable(false);
else
CExtControlBar::DoFrameBarCheckUpdate( this, pCmdUI, false );
}

Any other suggestions? Thank you: Chris.

As we said in the previous message, a popup sub menu item will be always enabled if at least one menu command is enabled in the menu sub tree. So, do not try to disable the popup sub menu item -- just disable all the commands in the sub menu instead. Simply change you control bar command updating method depending on some condition and disable all the control bar commands.

I’ve done just that... I’m sending you a sample project showing the problem.