Q77287: GlbEdit.exe Raises Text Size Limit for Edit Controls

Article: Q77287
Product(s): Microsoft Windows Software Development Kit
Version(s): WINDOWS:3.0,3.1
Operating System(s): 
Keyword(s): kbfile kb16bitonly kbCtrl kbSDKPlatform kbGrpDSUser
Last Modified: 06-DEC-1999

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Windows Software Development Kit (SDK) versions 3.0, 3.1 
-------------------------------------------------------------------------------

SUMMARY
=======

GlbEdit.exe is a sample file in that demonstrates how an edit control can have
its own data segment. By default, the buffer for an edit controls is allocated
from the application's data segment. Because the data segment is also used to
store information for other controls, space in the data segment is a scarce
resource.

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

The following files are available for download from the Microsoft Download
Center:

GlbEdit.exe

For additional information about how to download Microsoft Support files, click
the article number below to view the article in the Microsoft Knowledge Base:

  Q119591 How to Obtain Microsoft Support Files from Online Services

Microsoft used the most current virus detection software available on the date of
posting to scan this file for viruses. Once posted, the file is housed on secure
servers that prevent any unauthorized changes to the file.


Normally, edit controls in a dialog box use one common global data segment per
dialog box. If the dialog box has style DS_LOCALEDIT, edit controls use the data
segment pointed to by the hInstance used to create the dialog box. Edit controls
created with CreateWindow() use the data segment pointed to by hInstance.

The GLBEDIT sample shows how to change hInstance to point to a new global object.
Multiple controls of any type can use the same memory object.

To find the effected portions of the code, search for WM_CREATE in the
MainWndProc.

Additional query words:

======================================================================
Keywords          : kbfile kb16bitonly kbCtrl kbSDKPlatform kbGrpDSUser 
Technology        : kbAudDeveloper kbWin3xSearch kbSDKSearch kbWinSDKSearch kbWinSDK300 kbWinSDK310
Version           : WINDOWS:3.0,3.1

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 1986-2002.