code: def appendtext(self, window_name, object_name, data):
          
          object_handle = self._get_object_handle(window_name, object_name)
          if not object_handle.AXEnabled:
              raise LdtpServerException(u"Object %s state disabled" % object_name)
          object_handle.AXValue += data
          return 1
docs: Append string sequence.
          
          @param window_name: Window name to type in, either full name,
          LDTP's name convention, or a Unix glob.
          @type window_name: string
          @param object_name: Object name to type in, either full name,
          LDTP's name convention, or a Unix glob. 
          @type object_name: string
          @param data: data to type.
          @type data: string
  
          @return: 1 on success.
          @rtype: integer