Application.InvokeHelp Method
| Visio Automation Reference |
Performs operations that involve the Microsoft Office Visio Help system.
Version Information
Version Added: Visio 2002
Syntax
expression.InvokeHelp(bstrHelpFileName, Command, Data)
expression A variable that represents an Application object.
Parameters
| Name | Required/Optional | Data Type | Description |
|---|---|---|---|
| bstrHelpFileName | Required | String | Specifies an HTML file, a URL, a compiled HTML file, or an optional window definition (preceded with a ">" character). If the command being used does not require a file or URL, this value may be "". |
| Command | Required | Long | The action to perform. |
| Data | Required | Long | Any data that is required based on the value of the command argument. |
Return Value
Nothing
Remarks
Using the InvokeHelp method, you can create a custom Help system that is integrated with the Visio Help system. To enable your custom Help to appear in the same MSO Help window as Visio Help, do not specify a window definition in the bstrHelpFileName argument.
The arguments passed to the InvokeHelp method correspond to those described in the HTML Help API. For a list of command values, see the HTML Help API Reference on MSDN, the Microsoft Developer Network. Microsoft Visual Basic programmers can use the numeric equivalent of the C++ constants defined in the HTML Help API header files.
For example, use the following code to display the Visio Help pane:
| Visual Basic for Applications |
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For more information about the HTML Help API, search for "HTML Help API overview" on MSDN.
See Also