code: def verifytabname(self, window_name, object_name, tab_name):
          
          try:
              tab_handle = self._get_tab_handle(window_name, object_name, tab_name)
              if tab_handle.AXValue:
                  return 1
          except LdtpServerException:
              pass
          return 0
docs: Verify tab name.
          
          @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 tab_name: tab to select
          @type data: string
  
          @return: 1 on success 0 on failure
          @rtype: integer