Multiline Edit Control Limits in Windows NT

Last reviewed: November 2, 1995
Article ID: Q89712

The information in this article applies to:

Microsoft Win32 Application Programming Interface (API) included with:

    - Microsoft Windows NT versions 3.5 and 3.51
    - Microsoft Windows 95 version 4.0

The default maximum size for a multiline edit (MLE) control in both Windows and Windows NT is 30,000 characters. The EM_LIMITTEXT message allows an application to increase this value. Setting "cchmax" to 0 is a portable method of increasing this limit to the maximum in both Windows and Windows NT. When cchmax is set to 0, the maximum size for an MLE is 4GB-1 (4 gigabytes minus 1).

Additional reference words: 3.10 3.50 3.51 4.00 95
KBCategory: kbui
KBSubcategory: UsrCtl

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Last reviewed: November 2, 1995
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