Knowledge Base

FIX: LoadBarState() Causes Assert In Bardock.cpp, Line 682

Article ID: 151382

Article Last Modified on 11/18/2003

Microsoft Visual C++ 4.0 Standard Edition
Microsoft Visual C++ 4.1 Subscription
Microsoft Foundation Class Library 4.2

This article was previously published under Q151382

SYMPTOMS

An assert can occur in bardock.cpp, line 682 when CFrameWnd::LoadBarState() is called. This behavior occurs if SaveBarState() was previously called and more than one CToolBar was docked at the bottom of the window.

CAUSE

The assert occurs because CFrameWnd::EnableDocking() was called prior to creation of the CToolBars.

RESOLUTION

The assertion is unnecessary and can be ignored. To avoid the assertion, make sure that CFrameWnd::EnableDocking() is called after all calls to CToolBar::Create().

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This bug was corrected in Visual C++ 32- bit Edition version 4.2.

MORE INFORMATION

In Visual C++ 4.0, the assertion occurs in bardock.cpp, line 657.

MFC maintains a CPtrArray of CControlBars. The validity of the CPtrArray is checked when LoadBarState() is called. There are cases where the CPtrArray is not initialized at this juncture but is initialized correctly later on. Therefore, the assert is unnecessary.

Additional query words: kbVC400bug 4.00 4.10 4.20 vcfixlist420 MfcUI

Keywords: kbbug kbfix kbtoolbar kbvc420fix kbuidesign kbmfcctrlbar KB151382