Re: Tooltips for cutomized CFileDialog

I have called EnableToolTips in either OnInitDialog and OnInitDone,
after the base class call of OnInitDialog resp. OnInitDone.
(In the posting it is in OnInitDone.)

I tried to take a look at incoming messages, so I modified
WindowProc to

LRESULT CFileDialogExtra::WindowProc(UINT message, WPARAM wParam,
LPARAM lParam)
{
    LRESULT result = CFileDialogEx::WindowProc(message, wParam,
lParam);

    if (message == TTN_NEEDTEXTA || message == TTN_NEEDTEXTW)
    {
        TRACE("OKOK\n"); // I never get here
    }
    TRACE("WindowProc: message=%.8x wParam=%.8x lParam=%.8x\n", message,
wParam, lParam);

    if (message != WM_DESTROY && message != WM_NOTIFY && message !=
WM_NCDESTROY)
    {
        MSG msg;

        msg.hwnd = m_hWnd;
        msg.message = message;
        msg.wParam = wParam;
        msg.lParam = lParam;

        if (m_ToolTip.m_hWnd != NULL)
            m_ToolTip.RelayEvent(&msg);
    }

    return result;
}

Watching the messages by the TRACE macro when the
mouse is over the check box I see messages like

message=00000020 WM_SETCURSOR
message=00000084 WM_NCHITTEST
message=00000200 WM_MOUSEFIRST
message=00000085 WM_NCPAINT
message=00000019 ??
message=00000136 WM_CTLCOLORDLG
message=00000014 WM_ERASEBKGND
message=0000000f WM_PAINT
message=00000019 ??
message=00000138 WM_CTLCOLORSTATIC

but never TTN_NEEDTEXTA or TTN_NEEDTEXTW.

On a normal dialog it does work, on the customized
CFileDialog it does not. May it have to do with the fact,
that my check box is not a child of the dialog but a
grand child?


Please don't be fussy about my OnToolTipText,
it's a one to one copy of MFC source code
(CFrameWnd::OnToolTipText).