Re: Hide Frame window on load

From:

David Lowndes <DavidL@example.invalid>

Newsgroups:

microsoft.public.vc.mfc

Date:

Thu, 03 Aug 2006 16:19:16 +0100

Message-ID:

<5m44d257r6ishbbdddjsafkjlpsn4dt03h@4ax.com>

Anyone know how to get CDialog::DoModal() to create the dialog as hidden, so
in the OnInitDialog() I can do a MoveWindow() to move and resize the dialog
as desired without the user seeing a flicker? After I do these things, my
dialog can do a ShowWindow(SW_SHOW) to become visible in the correct
location and size.

If you use:

SetWindowPos( NULL, x, y, 0, 0,
            SWP_NOZORDER | SWP_NOSIZE | SWP_NOACTIVATE );

in InitDialog, you you still see it flicker?

Here's a method I've seen posted before to keep a dialog hidden:

Add a "visible" flag to the dialog class and initialize it to
FALSE in the constructor.

Add a handler for OnWindowPosChanging.

    void CTestDlg::OnWindowPosChanging( WINDOWPOS* lpwndpos )
    {
        if ( !m_bVisible )
            lpwndpos->flags &= ~SWP_SHOWWINDOW ;

        CDialog::OnWindowPosChanging(lpwndpos);
    }

Add a function to show/hide the app.

    void CTestDlg::DisplayWindow( BOOL bShow )
    {
        if ( bShow )
        {
            m_bVisible = TRUE;
            ShowWindow( SW_SHOWNORMAL );
        }
        else
        {
            m_bVisible = FALSE;
            ShowWindow( SW_HIDE );
        }
    }

Dave