XmCreateDragIcon creates a DragIcon and returns the associated widget
ID.
widget
Specifies the ID of the widget that the function uses to access
default values for visual attributes of the DragIcon. This widget
may be different than the actual parent of the DragIcon.
name
Specifies the name of the DragIcon widget.
arglist
Specifies the argument list.
argcount
Specifies the number of attribute/value pairs in the argument
list (arglist).
For a complete definition of DragIcon and its associated resources,
see XmDragIcon(3).
RETURN
The function creates a DragIcon and returns the associated
widget ID.