XmTextGetSelectionWcs — A Text function that retrieves the value of a wide character encoded primary

XmTextGetSelectionWcs retrieves the value of the primary selection that is encoded in  a  wide  character
       format.  It  returns  a NULL pointer if no text is selected in the widget. The application is responsible
       for freeing the storage associated with the wide character buffer by calling XtFree.

       widget    Specifies the Text widget ID

       For a complete definition of Text and its associated resources, see XmText(3).

XmTextGetSelectionWcs  —  A  Text  function  that retrieves the value of a wide character encoded primary
       selection "XmTextGetSelectionWcs" "Text functions" "XmTextGetSelectionWcs"

XmText(3) and XmTextGetSelection(3).

                                                                                        XmTextGetSelectionWcs(3)

       Returns the wide character string that is associated with the primary selection in the Text widget.

       #include <Xm/Text.h>
       wchar_t*XmTextGetSelectionWcs(
       Widgetwidget);