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MDI Background image

Posted on 2006-07-20
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Last Modified: 2013-11-20
Hi,

I have a standard MDI application. Can someone tell me how to draw a bitmap in the client area of the main frame? (A complete working example would be great).

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Question by:BazookaJoeZone
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mahesh1402 earned 250 total points
ID: 17151519
look at this :

Drawing Image on MDI Main Frame background
http://www.codeproject.com/dialog/mdibackgroundimage.asp

-MAHESH
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by:BazookaJoeZone
ID: 17160516
Hi Mahesh,

Alright I gave it a try. The sample uses:

    SetWindowLong(hMain, GWL_WNDPROC, (long)pfnNewWndProc);

to override the size and erase bg messages in a new message loop function. Is it possible to accomplish the same thing with the standard MFC message mappings?

If not, is it possible to selectively use the new message handler at runtime?

    if (bSomething) {
        SetWindowLong(hMain, GWL_WNDPROC, (long)pfnNewWndProc);
    }
    else {
        SetWindowLong(hMain, GWL_WNDPROC, (long)pfnOriginalWndProc);
    }

Thanks
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Expert Comment

by:mahesh1402
ID: 17161995
You can subclass window procedure as above with SetWindowLong

-MAHESH
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