Declaration

To call WINHELP.EXE from a Visual Basic application, first declare the API function in the global module of your source:

Public 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   

Enter the declaration on one line. Do not enter carriage returns.

Constants

Paste CONSTANT.TXT into your global module, or enter the following lines:

'Help Constants

Public Const HELP_CONTEXT = &H1 ' Display topic in ulTopic

Public Const HELP_QUIT = &H2 ' Terminate help

Public Const HELP_INDEX = &H3 ' Display index

Public Const HELP_CONTENTS = &H3&

Public Const HELP_HELPONHELP = &H4 ' Display help on using help

Public Const HELP_SETINDEX = &H5 ' Set current Index for multi index help

Public Const HELP_SETCONTENTS = &H5&

Public Const HELP_CONTEXTPOPUP = &H8&

Public Const HELP_FORCEFILE = &H9&

Public Const HELP_KEY = &H101 ' Display topic for keyword in offabData

Public Const HELP_COMMAND = &H102&

Public Const HELP_PARTIALKEY = &H105&

The comments are shown here on the line following the declarations because of space constraints. They can follow the declaration, on the same line.

See Also

Calling WinHelp()  

Calling WinHelp Version 4.0

#define list

Examples

FuCommand Parameters

HELP Context ID Property  

The HELPINFO Structure

The HELPWININFO Structure

The MULTIKEYHELP Structure

The WM TCard Structure