Hi Alex.

How do I know if the list part of a combobox is open or closed?

You add a custom property called lDroppedDown to your combo box class and add this code:

Click Method:

This.lDroppedDown = .F.

DropDown Method:

This.lDroppedDown = .T.

KeyPress Method:

*** If escape or enter pressed, the list is not dropped down anymore
IF nKeyCode = 27 OR nKeyCode = 13		    
  .lDroppedDown = .F.
ENDIF