XmGetDestination --
a function that returns the widget ID of the widget to be used as the current destination for quick paste and certain clipboard operations
XmGetDestination returns the widget that is the current destination
on the specified display.
The destination is generally the last editable widget on which a
select, edit, insert, or paste operation was performed and is the
destination for quick paste and certain clipboard functions.
The destination is NULL if the application makes this call before
any of the specified operations have been performed on an editable
widget.
display
Specifies the display whose destination widget is to be queried