Opening a help file.

How do I open a help file at a certain topic or content section of it with a command button? Here's my code thus far. It opens the help file, but I want to jump to a certain spot. I'm doing this in Access too, if that makes a difference. (Likely not)

Code:

---

Private Declare Function WinHelp _
 Lib "user32" Alias "WinHelpA" ( _
 ByVal hwnd As Long, _
 ByVal lpHelpFile As String, _
 ByVal wCommand As Long, _
 ByVal dwData As Long) As Long

Private Const HELP_CONTENTS = &H3&
Private Const HELP_QUIT = &H2

Option Compare Database
Option Explicit

Private Function DBPath() As String
    Dim strDBPath As String
    Dim strDBFile As String
   
    strDBPath = CurrentDb.Name
    strDBFile = Dir(strDBPath)
    DBPath = Left(strDBPath, Len(strDBPath) - Len(strDBFile))
End Function
Private Function FileExists(ByVal FileName As String) As Boolean
    If Dir(FileName) = "" Then
        FileExists = False
    Else
        FileExists = True
    End If
End Function

Private Sub Command0_Click()
    Dim strHelpFile As String
   
    strHelpFile = DBPath & "LegalTracking.hlp"
   
    If FileExists(strHelpFile) Then
        WinHelp Me.hwnd, strHelpFile, HELP_CONTENTS, 0
    Else
        MsgBox "Could not locate help file.  Try contacting your database administrator.", vbOKOnly, "Unable to locate help file."
    End If
End Sub

---

Here is some MSDN sample code with a lot of comments:

http://support.microsoft.com/support.../Q121/1/15.ASP


Here is what www.allapi.net has:

Code:

---

Const HELP_COMMAND = &H102&
Const HELP_CONTENTS = &H3&
Const HELP_CONTEXT = &H1
Const HELP_CONTEXTPOPUP = &H8&
Const HELP_FORCEFILE = &H9&
Const HELP_HELPONHELP = &H4
Const HELP_INDEX = &H3
Const HELP_KEY = &H101
Const HELP_MULTIKEY = &H201&
Const HELP_PARTIALKEY = &H105&
Const HELP_QUIT = &H2
Const HELP_SETCONTENTS = &H5&
Const HELP_SETINDEX = &H5
Const HELP_SETWINPOS = &H203&
Private Declare Function WinHelp Lib "user32.dll" Alias "WinHelpA" (ByVal hWndMain As Long, ByVal lpHelpFile As String, ByVal uCommand As Long, dwData As Any) As Long
Private Sub Form_Load()
    'KPD-Team 2000
    'URL: http://www.allapi.net/
    'E-Mail: [email protected]
    WinHelp Me.hwnd, "C:\Windows\help\common.hlp", HELP_CONTENTS, ByVal 0
End Sub

---

Thanks a lot there buddy. I needed to use the

HELP_CONTEXT constant

and it's the topic ID. Works great now. ;)

If you don't need to show a specific context ID, you could just shell WinHelp like:

Code:

---

Shell "WinHelp MyHelpFile.hlp", 1

---

I think you missed the point, but thanks for contributing though.