XmDataFieldSetInsertionPosition sets the insertion cursor position
of the DataField widget.
This routine also calls the widget's XmNmotionVerifyCallback
callbacks if the insertion cursor position changes.
widget
Specifies the DataField widget ID
position
Specifies the position of the insert cursor. This is an integer number
of characters from the beginning of the text buffer. The first
character position is 0 (zero).
For a complete definition of DataField and its associated resources, see
XmDataField(3).