BUG: Blank Window Appears Instead of Help File Contents (174213)
The information in this article applies to:
- Microsoft Visual Basic Learning Edition for Windows 5.0
- Microsoft Visual Basic Learning Edition for Windows 6.0
- Microsoft Visual Basic Professional Edition for Windows 5.0
- Microsoft Visual Basic Professional Edition for Windows 6.0
- Microsoft Visual Basic Enterprise Edition for Windows 5.0
- Microsoft Visual Basic Enterprise Edition for Windows 6.0
This article was previously published under Q174213 SYMPTOMS
When you set the HelpCommand property of a Common Dialog control to
cdlHelpContents and then use the ShowHelp method to display the contents of
a Help file, Windows Help appears with a blank window. The contents of the
Help file is not displayed. The same behavior is exhibited if you set the
HelpCommand property to cdlHelpIndex to display the index of a Help file.
RESOLUTIONWorkaround #1
To display the contents or index of your Help file with the ShowHelp
method, first set the HelpCommand property of the Common Dialog control to
the value &HB. This value corresponds to the HELP_FINDER constant 0x000b in
WINUSER.H. When you use this constant, the Help window appears with the
last active tab. For example, if the Index tab was selected when this
window was last shown, then it will be the active tab when help is shown
again:
CommonDialog1.HelpFile = _
"C:\Program Files\DevStudio\VB\Samples\Samples.hlp"
CommonDialog1.HelpCommand = &HB
CommonDialog1.ShowHelp
Workaround #2
To display the Index tab of your Help file, regardless of which tab was
active when the Help file was last shown, set the HelpCommand property of
the Common Dialog control to cdlHelpPartialKey:
CommonDialog1.HelpFile = _
"C:\Program Files\DevStudio\VB\Samples\Samples.hlp"
CommonDialog1.HelpCommand = cdlHelpPartialKey
CommonDialog1.ShowHelp
STATUS
Microsoft has confirmed this to be a bug in the Microsoft products
listed at the beginning of this article. We are researching this
bug and will post new information here in the Microsoft Knowledge
Base as it becomes available.
Modification Type: | Major | Last Reviewed: | 5/13/2003 |
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Keywords: | kbbug KB174213 |
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