Enable/Disable Frame Buttons :: MFC

This is a discussion on Enable/Disable Frame Buttons :: MFC within the Windows Programming forums, part of the Platform Specific Boards category; Hi. In both windows and dialog boxes, there are buttons on the upper right corner of the frame to minimize, ...

  1. #1
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    Enable/Disable Frame Buttons :: MFC

    Hi.

    In both windows and dialog boxes, there are buttons on the upper right corner of the frame to minimize, maximize, and/or close window. Is it possible to enable or disable one or more of those buttons? For example, I would like to disable the maximize option during a certain time and then reenable it.

    Thanks,
    Kuphryn

  2. #2
    &TH of undefined behavior Fordy's Avatar
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    Sure......but you need to alter the params sent to CreateWindow....

    Or as you do MFC, have a look at the PreCreateWindow() handler....

    You should be able to get away with something like this

    Code:
    BOOL CMyWindow::PreCreateWindow(CREATESTRUCT &cs){
    
    if(!CFrameWnd::PreCreateWindow(cs))
    return FALSE;
    
    cs.style &= ~WS_MAXIMIZEBOX;
    
    cs.lpszClass = AfxRegisterWndClass(NULL);
    return TRUE;
    
    }
    Havent tested it though...look it up

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    Thanks.

    I was thinking more of a way to enable/disable them in real-time.

    Kuphryn

  4. #4
    &TH of undefined behavior Fordy's Avatar
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    Hmm....I dont see why you would want to do this.......but hell its your proggy...

    I'm not sure there's an easy way to do it.......Maybe you could create a window without the max & min buttons and then create & animate them yourself......you're window is sent WM_NCLBUTTONDOWN , WM_NCLBUTTONUP and WM_NCPAINT messages to allow you to work in the title bar....it would be a b*tch of a job though

    Sorry I cant offer a better idea...there may be one, but I'm not sure...maybe you could find a handle to these buttons and control them from there.......spy++ doesnt seem to want to know them so

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    Thanks.

    Sonu Kapoor posted the solution to catch WM_CLOSE message and add whatever code you wanted before the window and/or dialog box close.

    Kuphryn

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    Just a guess

    Try enable or disable SC_MINIMIZE, SC_MAXIMIZE commands in the system menu of the window. These are linked to the buttons I think.

  7. #7
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    Hey,

    Nishant S of CodeProjects posted a key solution that opens up whole new horizon of menu controls.

    http://www.codeproject.com/script/c...7289#xx217289xx

    Kuphryn

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