Thread: changing from multiple-doc to single-doc

  1. #1

    Question changing from multiple-doc to single-doc

    I have created a program using mfc wizard in visual c++ 6 and chose the multiple-document option but now want to change it so it's only a single-document application. Do you know how to do this?

  2. #2
    Ok this isn't really a big help but the only way I have been able to do it is to use the appwizard to create a new SDI.Recreate all classes..etc, and then start to copy & paste all your user created code from the MDI. Not very graciuos but it works.

  3. #3
    Registered User
    Join Date
    Aug 2001

    changing a MDI to an SDI app

    I looked this up in the help files before and that is how it instructed to do it. Here are the main differences that I can remember from an SDI and a MDI app..
    CMainFrame is derived from CMainWnd --- change to this in CMainFrm.h
    CMainFrame is derived from CMDIWnd
    Lose the CChildFrame.cpp and CChildFrame.h files
    lose the #include "ChildFrame.h" in the C..App.h
    in the C..App.cpp modify the InitInstance function
    declare a CSingleDocTemplate instead of a CMultiDocTemplate
    Delete the code segment that creates the MDI Frame Window
    // create main MDI Frame window
    CMainFrame* pMainFrame = new CMainFrame;
    if (!pMainFrame->LoadFrame(IDR_MAINFRAME))
    return FALSE;
    m_pMainWnd = pMainFrame;

    You can expect to run into some errors but you should be able to do it the way barjor said.

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