Visual Basic Reference
Causes the mouse pointer to change into the What's This pointer and prepares the application to display What's This Help on the selected object.
The object placeholder represents an object expression that evaluates to an object in the Applies To list.
Executing the WhatsThisMode method places the application in the same state you get by clicking the What's This button in the title bar. The mouse pointer changes to the What's This pointer. When the user clicks an object, the WhatsThisHelpID property of the clicked object is used to invoke context-sensitive Help. This method is especially useful when invoking Help from a menu in the menu bar of your application.