Is there a way to cause the drop down list of a Combo Box to "pop up" (or "pop down") when
the user tries to enter a blank in its input field?

I'd like to use something like "thisform.comobox1.ActivateDropDownList = .T.",
when the combo box looses focus AND Lastkey() = 13.

Does any such property or command exist for the Combo Box?

TIA

F. Bennett Swenson