DOCUMENT:Q132291  24-JUL-2001  [visualc]
TITLE   :DOC: AfxRegisterWndClass with WS_* Styles Causes Exception
PRODUCT :Microsoft C Compiler
PROD/VER:winnt:4.0,4.0a,4.1,4.2,4.2b,5.0,5.0sp1,5.0sp2,5.0sp3,6.0
OPER/SYS:
KEYWORDS:kbdocfix kbdocerr kbMFC KbUIDesign kbVC100bug kbVC150bug kbVC151bug kbVC152bug kbVC200b

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The information in this article applies to:

 - The Microsoft Foundation Classes (MFC), used with:
    - Microsoft Visual C++ for Windows, 16-bit edition, versions 1.0, 1.5, 1.51, 1.52 
    - Microsoft Visual C++, 32-bit Editions, versions 4.0, 4.0a, 4.1, 4.2, 4.2b, 5.0, 5.0sp1, 5.0sp2, 5.0sp3, 6.0 
    - Microsoft Visual C++, 32-bit Enterprise Edition, version 4.2 
    - Microsoft Visual C++, 32-bit Professional Edition, version 4.2 
    - Microsoft Visual C++, 32-bit Enterprise Edition, version 4.2b 
    - Microsoft Visual C++, 32-bit Professional Edition, version 4.2b 
    - Microsoft Visual C++, 32-bit Enterprise Edition, version 5.0 
    - Microsoft Visual C++, 32-bit Professional Edition, version 5.0 
    - Microsoft Visual C++, 32-bit Enterprise Edition, version 6.0 
    - Microsoft Visual C++, 32-bit Professional Edition, version 6.0 
    - Microsoft Visual C++, 32-bit Learning Edition, version 6.0 
    - Microsoft Visual C++, 32-bit Enterprise Edition, version 5.0sp1 
    - Microsoft Visual C++, 32-bit Professional Edition, version 5.0sp1 
    - Microsoft Visual C++, 32-bit Enterprise Edition, version 5.0sp2 
    - Microsoft Visual C++, 32-bit Professional Edition, version 5.0sp2 
    - Microsoft Visual C++, 32-bit Enterprise Edition, version 5.0sp3 
    - Microsoft Visual C++, 32-bit Professional Edition, version 5.0sp3 
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SUMMARY
=======

The documentation for AfxRegisterWndClass states that the nClassStyle parameter
can be a combination of any window style or control style.

If a window style (for example, WS_VISIBLE and WS_CHILD) is used in this
parameter, then the AfxRegisterWndClass function call causes a resource
exception to be thrown. Your application will probably fail, and give a message
similar to this:

   

   Unhandled Exception in myapp.exe (MFC30D.DLL): 0xE06D7363: Microsoft
      C++ Exception.

MORE INFORMATION
================

Only Window CLASS styles (not window styles) can be used in the nClassStyle
parameter. These class styles are listed in the documentation for the WNDCLASS
structure. Examples of window class styles include:

   CS_HREDRAW
   CS_VREDRAW
   CS_DBLCLKS

NOTE: This problem was fixed in Microsoft Visual C++ versions 4.0 and later.

Additional query words: AfxThrowResourceException 1.00 1.50 1.51 1.52 2.00 2.50 2.51 2.52 2.10 2.20 3.00 3.10 3.20 4.00

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Keywords          : kbdocfix kbdocerr kbMFC KbUIDesign kbVC100bug kbVC150bug kbVC151bug kbVC152bug kbVC200bug kbVC210bug kbVC220bug kbVC400fix kbDOCError kbGrpDSMFCATL 
Technology        : kbAudDeveloper kbMFC
Version           : winnt:4.0,4.0a,4.1,4.2,4.2b,5.0,5.0sp1,5.0sp2,5.0sp3,6.0

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