XmStringCopy — A compound string function that makes a copy of a string
       #include <Xm/Xm.h>
       XmString XmStringCopy(
       XmString s1);
       XmStringCopy makes a copy of an existing  compound  string.   When  the
       application   no   longer  needs  the  returned  compound  string,  the
       application should call XmStringFree.
       s1        Specifies the compound string to be copied
       Returns a compound string.
       XmStringCreate(3) and XmStringFree(3).
                                                    XmStringCopy(library call)