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Q76933: DOC: Button Styles May Not Be OR’d with Other Button Styles

Article: Q76933
Product(s): Microsoft Windows Software Development Kit
Version(s): WINDOWS:3.1
Operating System(s): 
Keyword(s): kbdocfix kb16bitonly kbButton kbCtrl kbSDKPlatform
Last Modified: 10-JUN-1999

3.00 3.10
WINDOWS
kbprg 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
=======

Resource script statements are documented in Chapter 8 of the Microsoft Windows
SDK version 3.0 "Reference Volume 2" and in chapter 13 of the Microsoft Windows
SDK version 3.10 "Programmer's Reference: Volume 4, Resources" These chapters
include statements such as the following:

  In addition to these styles, the style field may contain any combination
  (or none) of the BUTTON-class styles. Styles can be combined using the
  bitwise OR operator.

This statement, which is repeated a number of times throughout the chapter, is
incorrect; button styles cannot be combined.

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

The button style identifiers (BS_*) are defined in the WINDOWS.H file as
consecutive integers, not individual bits. If two button styles are combined and
the combination creates a legal button style, the button will be created with
that style. However, if two button styles are combined and the combination does
not create a legal button style, the button will be created, but will not be
painted on the screen.

NOTE: Button styles may be combined with window styles (WS_*) by using the
bitwise OR operator (|).

Additional query words: 3.00 3.10

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

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