Re: OnInitDialog to populate ComboBox wont work due to missing hwnd ?!

From:
David Wilkinson <no-reply@effisols.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Tue, 11 Sep 2007 12:10:39 -0400
Message-ID:
<OaKfC5I9HHA.5424@TK2MSFTNGP02.phx.gbl>
..rhavin grobert wrote:

I always thought that OnInitDialog will be called *after* the dialog-
elements were created,
but in this function, calling create leads to OnInitDialog without
setting HWNDs correctly.
pTab->pPage->ShowWindow(SW_SHOW) sets up all correctly for the first
time, so OnInitDialog should be called *after*, shouldnt it?. What do
i mess up?

i do the following in a class derived from CTabCtrl:

void CQTabCtrl::PageLoad(int nIndex) {
    RECT rc;
    GetClientRect(&rc);
    AdjustRect(false, &rc);

    //pTab is a struct with a pointer to a CWnd
  //derived class and some other data...
    SQTabTab* pTab = GetTab(nIndex);

    if (pTab == 0) return;
    if (pTab->pPage->GetSafeHwnd() == 0) {
        pTab->pPage->SetParent(this);
        // QGetRscID() returns the correct Resource-ID...
        // Create calls OnInitDialog, but the HWNDs are still 0...
        pTab->pPage->Create(pTab->pPage->QGetRscID(),this);
    }
    pTab->pPage->ModifyStyle(WS_CAPTION|WS_DISABLED,WS_CLIPCHILDREN|
WS_CHILD,1);
    pTab->pPage->MoveWindow(&rc,true);
    pTab->pPage->ShowWindow(SW_SHOW);
}


rahvin:

1. How are you getting the HWND's? You did not show us the
OnInitDialog() itself.

2. In your code, shouldn't you call Create() before SetParent()?

--
David Wilkinson
Visual C++ MVP

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