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How to point to a specific help topic when invoking a help button  vbMsgBoxHelpButton

themroc
themroc asked
on
Medium Priority
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Last Modified: 2010-04-07
When a certain contition is fullfiled I fire up a msg box

MsgBox msg_string, vbCritical + vbOKOnly + vbMsgBoxHelpButton, "Warning"

Now my question, there is the button
vbMsgBoxHelpButton
What actually happened when the users presses this button, can someone give me some lines of code
how to invoke a ceratin help ID when the user presses this button

thanks
:)
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CERTIFIED EXPERT
Top Expert 2010

Commented:
Hi themroc,

When I include HTMLHelp with an app, I use this API function to enable the help launch:

Private Declare Function HtmlHelp Lib "HHCtrl.ocx" Alias "HtmlHelpA" (ByVal hwndCaller As Long, _
    ByVal pszFile As String, ByVal uCommand As Long, ByVal dwData As Long) As Long
' Use &HF for uCommand to display a help topic by ContextID (passed as dwData)

I will usually put a commandbutton each form to show help; the click event sub for that button will call
that API function and pass the context ID to show a specific topic.

To do this in a MsgBox:

MsgBox(prompt[, buttons] [, title] [, helpfile, context])

Regards,

Patrick

Author

Commented:
Hi patrick

I created already a help file and invoke it with
App.HelpFile = "help.chm"

When I want to display help for any topic I only have to assign a help ID and it goes to the right topic.
This I usually do in the property windo for a ceratin control

Now I am not quiet sure where I can set the help ID for the vbMsgBoxHelpButton

Lets say the helpContextID is 661, where do I have to set this number for this button?





MsgBox msg_string, vbCritical + vbOKOnly + vbMsgBoxHelpButton, "Warning"
CERTIFIED EXPERT
Top Expert 2010
Commented:
It's the fifth argument.  See the syntax I posted above.

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Author

Commented:
Sorry I was a little bit slow,
it works fine thank you
:)
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