Possible values of KLCONN_GUI_CALL_RESCODE

Standard values are:

• GCR_SUCCESS=0 - method completed successfully
• GCR_FAILURE=-1 - method failed, extra information is contained in pErrorData
• GCR_NO_SUCH_CALL=KLSTD::STDE_NOFUNC (see Some error definitions) - no such GUI call (GUI call is not implemented)