FIX: A stack overflow occurs when MFC ActiveX control containers enter a state of infinite recursion in Visual C++ (192942)
The information in this article applies to:
- The Microsoft Foundation Classes (MFC), when used with:
- Microsoft Visual C++, 32-bit Enterprise Edition 6.0
- Microsoft Visual C++, 32-bit Professional Edition 6.0
- Microsoft Visual C++, 32-bit Learning Edition 6.0
This article was previously published under Q192942 SYMPTOMS Under certain circumstances, MFC ActiveX control containers
will enter a state of infinite recursion that eventually leads to a stack
overflow. The symptoms of this are when the position of a control site changes,
the program will seemingly hang and eventually produce a stack overflow
(0xC00000FD) operating system exception. The stack trace looks like this:
COleControlSite::MoveWindow
COleControl::XOleInPlaceObject::SetObjectRects
COleControl::OnSetObjectRects
COleControlSite::MoveWindow
...
CAUSE When the position of the control site changes, the
container code changes the position of the reflector window (if present) and
the tracker rectangles (if present). The control container code eventually
calls COleControl::XOleInPlaceObject::SetObjectRects. (See CTLINPLC.CPP in the
MFC source.) SetObjectRects() makes a call to GetOuterWindow(), which returns
the reflector window if present. If the reflector window variable is NULL then
the same window object is returned, MoveWindow is then called using the
returned window object. This causes MoveWindow to be called on itself,
resulting in a recursive loop. RESOLUTION One workaround is to copy the Visual C++ 5.0 version of the
MFC42.DLL (File version: 4.21.7303) to the home directory of the program
experiencing this problem. This will cause the program to use the older version
of MFC, instead of the MFC42.DLL that is located in the Windows system
directory. STATUS Microsoft has confirmed this to be a bug in the Microsoft
products listed in this article. This bug has been fixed in
the Visual Studio 6.0 Service Pack 1. To obtain this service pack,
visit the following Microsoft Web site:
For more information about Visual Studio 6.0 Service Pack 1, click the following article numbers to view the articles in the Microsoft Knowledge Base:
193009
Visual Studio 6.0 Service Pack 1 Readme
194022 Visual Studio 6.0 service packs, what, where, why
194295 How to tell that a Visual Studio service pack is installed
MORE INFORMATION This bug has been found in WordPerfect 8 that ships as part
of Corel Office Suite 8. This bug occurs only with the Visual C++ 6.0 version
of the MFC42.DLL.
| Modification Type: | Major | Last Reviewed: | 4/20/2006 |
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| Keywords: | kbQFE kbBug kbfix kbNoUpdate kbVC600SP1Fix kbVS600SP1fix KB192942 kbAudDeveloper |
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