DOC: Do Not Use MB_NOFOCUS Flag with MessageBox Function (87341)
The information in this article applies to:
- Microsoft Windows Software Development Kit (SDK) 3.1
This article was previously published under Q87341
3.10
WINDOWS
kbtoolkbtoolg kbdocerr
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.
| Modification Type: | Minor | Last Reviewed: | 2/11/2005 |
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| Keywords: | kb16bitonly kbdocfix kbMessageBox KB87341 |
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