XmTextGetSelectionWcs - A Text function that retrieves the value of a wide character encoded primary selection
#include <Xm/Text.h>
Widget widget;
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.
For a complete definition of Text and its associated resources, see XmText(3X).
Returns the wide character string that is associated with the primary selection in the Text widget.