NUM-DROPPED-FILES attribute (Windows only; Graphical interfaces only) Indicates the number of files dropped in the last drag-and-drop operation performed on the widget. Data type: INTEGER Access: Read-only 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 (?).