Implement chm Help in Visual Basic
Give your app a more polished appearance by using .chm files for your help system.
First place a existing chm File in the project path. You must know what name your htm pages have to work correct.
Module
Option Explicit
Private Declare Function HtmlHelpTopic Lib "hhctrl.ocx" Alias _
"HtmlHelpA" (ByVal hWnd As Long, ByVal lpHelpFile As String, _
ByVal wCommand As Long, ByVal dwData As String) As Long
Sub ShowHtmlHelp(ByVal tHelpFile As String, ByVal tHelpPage As String)
Const HH_DISPLAY_TOPIC =3D &H0
On Error Resume Next
' open the help page in a modeless window
HtmlHelpTopic 0, tHelpFile, HH_DISPLAY_TOPIC, tHelpPage
End Sub
Usage
Put a command button to your form and name it cmdHelp
Private Sub cmdHelp_Click()
'This is only a example
ShowHtmlHelp App.path & "\MyHelp.chm", "Introduction.htm"
End Sub
Special Instructions
This code originally appeared on AndreaVB.com, and has been republished here with the permission of Andrea Tincani.
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