sf_cua_file_view    View a file in a pick_list() window in CUA
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    function uint sf_cua_file_view prototype
      parameters const char file_name,;
                 value int lr,;
                 value int lc,;
                 value int rr,;
                 value int rc,;
                 const logical disp_only,;
                 const logical ret,;
                 value int window_color,;
                 const char header_string,;
                 value int  header_color,;
                 const logical use_handler,;
                 untyped exception_handler

    View a file in a pick_list() window in CUA.