🚀 go-pugleaf

Remy Lebeau (TeamB) wrote:

> What does your code look like that is calling add() in the first place?  How
> are you allocating hwndC?  Please show a more complete code snippet that
> demonstrates what you are asking doing.

The code that calls 'add:
TMyForm::TMyForm() :
             WinBlankForm(NULL, 0, 0, 400, 400,
                         (WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_OVERLAPPEDWINDOW) &
                         ~WS_SIZEBOX & ~WS_MAXIMIZEBOX & ~WS_MINIMIZEBOX),
             cBoxC(this, 0, 0, clientWidth(), 250) {

    ShowWindow(hwndC, SW_SHOW);
    for (int i=0; i<16; ++i)
                cBoxC.add(c_cast<char*>(mu::itoa(i).c_str()));
    cBoxC.itemIndex(0);
}

The allocation of hwnd for the combo box (cBoxC):
WinComboBox::WinComboBox(WinControl * parent, int left, int top, int width, int height) :
             WinControlWin(parent, left, top, width, height),
             callBackFuncC(NULL) {

    idC.changeCallback(WinComboBox::comboBoxCallback, this);
    wCommandProcC = wCommandProc;
    DWORD style = WS_CHILD | WS_TABSTOP | ES_LEFT | CBS_DROPDOWNLIST | WS_VSCROLL;
    hwndC = CreateWindow("COMBOBOX", " ", style, leftC, topC, widthC, heightC,
                parentC->hwnd(), (HMENU)idC.id(), gApp->hinst(), NULL);
    if (!hwndC) throw AppException("Unable to create window");
    SendMessage(hwndC, WM_SETFONT, (WPARAM)GetStockObject(DEFAULT_GUI_FONT),
                MAKELPARAM(false, 0));
    setupWindowProc();
    ShowWindow(hwndC, SW_SHOW);
}

The allocation of hwnd for the TImportDeviceForm:
WinBlankForm::WinBlankForm(WinControl * parent, int x, int y, int top, int left,
             long style, bool showIcon) :

             WinBaseO(parent, x, y, top, left) {

    hwndC = CreateWindowEx(WS_EX_CONTROLPARENT, winClassNameC, winCaptionC,
                style, leftC, topC, widthC, heightC,
                showIcon ? (parent ? parent->hwnd() : NULL) : NULL,
                NULL, gApp->hinst(), NULL);
    if (!hwndC) throw AppException("Unable to create window");
}

And it gets deeper quickly.  I have stepped through it looking for buffer overruns.  Cannot 
see any.  That doesn't mean they don't exist.  I was hoping someone may have seen something 
of this nature before where it seems to be platform specific.

David