WhatsThisButton Property

From Microsoft Access Visual Basic

expression.WhatsThisButton

expression    Required. An expression that returns one of the objects in the Applies To list.

Remarks

The WhatsThisButton property uses the following values:

Setting Visual Basic Description
Yes True A What's This button appears on the title bar.
No False (Default) A What's This button doesn't appear on the title bar.

You can set the WhatsThisButton property by using the form's property sheet, a macro, or Visual Basic.

This property can be set only in form Design view.

You can't display the What's This button on the title bar of a form unless the MinMaxButtons property is set to None.

Clicking the What's This button on the title bar of a form causes the question-mark mouse pointer to appear. With the question-mark pointer, you can click any control to access its custom Help topic specified by the control's HelpContextID property. If the control doesn't have a custom Help topic, the form's custom Help topic is displayed. If neither the form or the control has a custom Help topic, Microsoft Access Help is displayed.

Example

The following example places a What's This button on the title bar of the "Switchboard" form. The form must be in form Design view, or else a run-time error will occur.

Forms.Item("Switchboard").MinMaxButtons = 0 
Forms.Item("Switchboard").WhatsThisButton = True