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Q87341: DOC: Do Not Use MB_NOFOCUS Flag with MessageBox Function

Article: Q87341
Product(s): Microsoft Windows Software Development Kit
Version(s): WINDOWS:3.1
Operating System(s): 
Keyword(s): kbdocfix kb16bitonly kbMessageBox kbSDKPlatform
Last Modified: 11-JUN-1999

3.10
WINDOWS
kbtoolkbtoolg kbdocerr

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The information in this article applies to:

- Microsoft Windows Software Development Kit (SDK) 3.1 
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SUMMARY
=======

In the Microsoft Windows graphical environment, an application can use the
MessageBox function to create, display, and operate a message box window. The
fourth parameter of the MessageBox function is fuStyle, which has the UINT data
type.

The fuStyle parameter specifies the message box style; it can be a combination of
the MB_* values, including MB_OK, MB_ICONHAND, MB_SYSTEMMODAL, and so on. These
values are defined in the WINDOWS.H header file provided with the Microsoft
Windows Software Development Kit (SDK).

WINDOWS.H defines MB_NOFOCUS, which is not listed in the SDK documentation
(printed or electronic). In the book "Programming Windows 3" by Charles Petzold
(Microsoft Press), page 440 states that when the MB_NOFOCUS flag is specified,
Windows creates the message box but does not give it the focus. This statement
is incorrect.

MB_NOFOCUS is not one of the standard MB_* values and it cannot be used in the
fuStyle parameter. Although MB_NOFOCUS is used internally by Windows, it is not
passed to or accepted from an application.

Additional query words: 3.10 docerr

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Keywords          : kbdocfix kb16bitonly kbMessageBox kbSDKPlatform 
Technology        : kbAudDeveloper kbWin3xSearch kbSDKSearch kbWinSDKSearch kbWinSDK310
Version           : WINDOWS:3.1

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