XmDataFieldGetString — A DataField function that accesses the string value "XmDataFieldGetString"

XmDataFieldGetString accesses the string value of the DataField widget. The  application  is  responsible
       for freeing the storage associated with the string by calling XtFree.

       widget    Specifies the DataField widget ID

       For a complete definition of DataField and its associated resources, see XmDataField(3).

XmDataFieldGetString  —  A  DataField  function  that  accesses  the  string value "XmDataFieldGetString"
       "DataField functions" "XmDataFieldGetString"

XmDataField(3) and XmDataFieldGetStringWcs(3).

                                                                                         XmDataFieldGetString(3)

       Returns  a  character pointer to the string value of the DataField widget.  This returned value is a copy
       of the value of the XmNvalue resource.  Returns an empty string if the length of the  DataField  widget's
       string is 0 (zero).

       #include <Xm/DataF.h>
       char*XmDataFieldGetString(
       Widgetwidget);