The IRAPI supports a number of global parameters. These parameters are read only and system wide in scope. They are set in the file /vs/data/irAPI.rc. Note that this file also contains TSM specific parameters which do not apply to the IRAPI at large.
Applications can use irGetGlobalParam(3IRAPI) to get an integer-type global parameter and irGetGlobalParamStr(3IRAPI) to get a string-type global parameter.