I recently needed a wizard that could be resized by the user. After looking around on CodeGuru I found nothing that would do this completely so I created my own (since I have taken so much code and ideas from CodeGuru, I felt that the time had come to give something back).
After a while I came up with the class CResizablePropertySheet. It is derived from the MFC CPropertySheet class and handles the resizing of the standard wizard buttons, the tab control and the pages included in the sheet. The CResizablePropertySheet uses a class CDlgItemResizer that handles the resizing of the controls in the property sheet. In an article written by Eli Vingot (firstname.lastname@example.org) implementing a resizable dialog, I found some great code. I have been writing control-resizing code manually for almost 10 years and the idea just never came to me that this could be automated. Eli Vingot's code really takes the pain out of resizing.
The next thing to do is to handle the resizing in all of the included pages. Create a page the normal way and declare a CDlgItemResizer member variable inside it. Also, add the OnInitDialog() and OnSize() member functions. In the OnInitDialog() function, use the CDlgItemResizer::Add() routine to add all the controls that are to be resized. Make sure to use the correct combination of the resizing flags (lock to top/left/right/bottom). In the OnSize() member function, add a single line of code to resize all controls: call the CDlgItemResizer::Resize().
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