DisclosureTriangle.AcceptFocus Property
Syntax
AcceptFocus as Boolean
If True, the DisclosureTriangle will be included in the Tab order and can accept the focus. The GotFocus and LostFocus events will fire at the appropriate times.
When the DisclosureTriangle has the focus, it has a selection rectangle. If the user clicks the DisclosureTriangle or presses either the Space bar or the Enter key, the Action event will fire. The ability of the DisclosureTriangle to accept the focus is Windows-only. The default value is False.