Release 10.1A: OpenEdge Development:
Progress 4GL Reference

NUM-DROPPED-FILES attribute

Indicates the number of files dropped in the last drag-and-drop operation performed on the widget.

Data type: INTEGER

Access: Readable

Applies to: BROWSE widget, BUTTON widget, COMBO-BOX widget, DIALOG-BOX widget, EDITOR widget, FILL-IN widget, FRAME widget, RADIO-SET widget, SELECTION-LIST widget, SLIDER widget, TOGGLE-BOX widget, WINDOW widget

If there is no current drag-and-drop operation, NUM-DROPPED-FILES returns the Unknown value (?).