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Whole application flickers upon resize
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clintsinger View Drop Down
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Joined: 15 May 2003
Location: Canada
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Points: 9 		Post Options Post Options   Thanks (0) Thanks(0)   Quote clintsinger Quote  Post ReplyReply Direct Link To This Post Topic: Whole application flickers upon resize
    Posted: 03 September 2003 at 5:07pm

Hi All,

I have a ToolkitPro application that I am working on and I am having a problem with the redrawing.  When I resize the Main frame window the whole application flickers, including menus, command bars and statusbar.  I am using the theme kit as well as the outlook bar.  On the right hand side of the outlook bar I have a regular CView derived object which uses CXTMemDC for drawing. I am not sure what I could be doing wrong as the demo applications don't flicker at all.  Is it possible that I am using too many resources?

I am also running my screen resolution at 1600x1200 on a dual Pentium III 866 on Windows XP Professional.
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Sven View Drop Down
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Joined: 21 August 2003
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Points: 127 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Sven Quote  Post ReplyReply Direct Link To This Post Posted: 05 September 2003 at 12:25pm
It seems that the main window has set the CS_HREDRAW/CS_VREDRAW style. Just define your own window class instead.
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clintsinger View Drop Down
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Points: 9 		Post Options Post Options   Thanks (0) Thanks(0)   Quote clintsinger Quote  Post ReplyReply Direct Link To This Post Posted: 18 September 2003 at 6:47pm

It seems that is not the case.  Any other ideas of what would be causing a complete redraw everytime I resize?
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Oleg View Drop Down
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Joined: 21 May 2003
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Points: 11234 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Oleg Quote  Post ReplyReply Direct Link To This Post Posted: 20 September 2003 at 12:01pm

I had such problem when in CMainFrame::PreCreateWindow of MDI frame

call CFrameWnd::PreCreateWindow instead CMDIFrameWnd::PreCreateWindow....
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kstowell View Drop Down
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Joined: 25 January 2003
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Points: 496 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kstowell Quote  Post ReplyReply Direct Link To This Post Posted: 16 October 2003 at 6:03pm

Try adding this to your CMainFrame::PreCreateWindow method:

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
    if( !CFrameWnd::PreCreateWindow(cs) )
        return FALSE;

    // TODO: Modify the Window class or styles here by modifying
    // the CREATESTRUCT cs

    // Helps to reduce screen flicker.
    cs.lpszClass = AfxRegisterWndClass(0, NULL, NULL,
        AfxGetApp()->LoadIcon(IDR_MAINFRAME));

    return TRUE;
}

Let me know if this helps.

Kind regards,
Codejock Support
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