Microsoft KB Archive/77287

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GlbEdit.exe Raises Text Size Limit for Edit Controls

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Q77287

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The information in this article applies to:


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

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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

Issue type :

Technology : kbAudDeveloper kbWin3xSearch kbSDKSearch kbWinSDKSearch kbWinSDK300 kbWinSDK310