FIX: Memory Leak in CVBControl::AddItem()

Last reviewed: September 18, 1997
Article ID: Q110952

1.00 WINDOWS kbprg kbfixlist kbbuglist

The information in this article applies to:

The Microsoft Foundation Classes (MFC) included with:

    - Microsoft Visual C++ for Windows, version 1.0

SYMPTOMS

When using CVBControl::AddItem() to add additional items to a VBX control, you may notice a memory leak of 500-1000 bytes per call.

CAUSE

The Microsoft Foundation Class (MFC) Library provides an emulation of Visual Basic to allow VBX controls to be used in a Windows-based application written in C++. The emulation of the standard AddItem() method in MFC 2.0 does not release an unneeded HSZ (handle to zero terminated string) when adding an item to a VBX control.

STATUS

Microsoft has confirmed this to be a problem in Microsoft Foundation Classes for Windows, version 2.0. This problem was corrected in Microsoft Foundation Classes for Windows version 2.5, which is included with Microsoft Visual C++, version 1.5.

Additional reference words: 1.00 2.00 memory leak VBX grid
addItem CVBControl
KBCategory: kbprg kbfixlist kbbuglist
KBSubcategory: MfcVBX
Keywords : kb16bitonly MfcVBX kbbuglist kbfixlist kbprg
Technology : kbMfc
Version : 1.00
Platform : WINDOWS
Solution Type : kbfix

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Last reviewed: September 18, 1997
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