Microsoft KB Archive/102827

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Knowledge Base

Replacing a View in a Splitter Window

Article ID: 102827

Article Last Modified on 11/21/2006


  • Microsoft Foundation Class Library 4.2, when used with:
    • Microsoft Visual C++ 1.0 Professional Edition
    • Microsoft Visual C++ 1.5 Professional Edition
    • Microsoft Visual C++ 1.51
    • Microsoft Visual C++ 1.52 Professional Edition
    • Microsoft Visual C++ 1.0 Professional Edition
    • Microsoft Visual C++ 2.0 Professional Edition
    • Microsoft Visual C++ 2.1
    • Microsoft Visual C++ 4.0 Standard Edition
    • Microsoft Visual C++ 4.1 Subscription

This article was previously published under Q102827


The SPLIT sample demonstrates the following Foundation Class programming concepts:

  1. A ReplaceView() function can be created which replaces a view in a CSplitterWnd pane with another. The function replaces a view but uses the same CDocument object. This function can be helpful if a programmer wants to keep the same frame window and document for a splitter pane and only wants to delete a view in a pane and replace it with another.
  2. The CDocument variable m_bAutoDelete can be used to prevent the destruction of a CDocument object if all views of the document are destroyed.
  3. The CWnd::PreCreateWindow() function can be used to prevent the main application from having a thick frame thus preventing the user from resizing the main application window.
  4. By trapping the WM_SETCURSOR, WM_MOUSEMOVE, and WM_LBUTTONDOWN messages of a CSplitterWnd, you can fix the splitter bars in a splitter window so that they can't be moved by the user.
  5. CSplitterWnd panes can contain regular CWnd objects and are not limited to the use of CViews. This sample places a dialog in the first pane.
  6. The undocumented CWnd::CenterWindow() can be used to position windows at the center of the screen.

The following files are available for download from the Microsoft Download Center:


For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to Obtain Microsoft Support Files from Online Services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.

NOTE: Use the -d option when running SPLIT.EXE to decompress the file to re-create the proper directory structure.


To understand what the sample does, first execute the program. You will see a main application window with a splitter window (CSplitterWnd) in its client area. A selection dialog will be displayed in the first pane and a view will be displayed in the second pane.

Click on the "View 1" and "View 2" buttons. Notice that the view in the second pane will switch from one to the other. The view is changing but looking at the source you'll see that the document stays the same.

The sample project can be converted to a 32-bit Visual C++ 2.x project and will successfully compile and execute once the following change has been made:

On line 34 of SPLITTER.CPP, change:




If you have comments or suggestions about how to improve this sample, please send Microsoft a message to the MFC section of the MSLANG forum.

Additional query words: split splitter sample

Keywords: kbdownload kbuidesign kbdocview kbsample KB102827