Inventory

RFID_AddPreFilter RFID_AddZoneA RFID_AddZoneW RFID_DeletePreFilter RFID_DeleteZone RFID_PerformInventory RFID_PerformZoneInventory RFID_StopInventory

RFID_STATUS WINAPI RFID_DeletePreFilter ( RFID_HANDLE32  readerHandle, UINT16  antennaID, UINT32  filterIndex   ) This function removes one/all filters from the filter list, which the reader applies to sort a particular tag population. Parameters: [in]  readerHandle  Handle to the RFID device. [in]  antennaID  0 for all Antenna or the specific antennaID. [in]  filterIndex  Index to the Filter to be removed. Returns: If the function succeeds the return value is RFID_API_SUCCESS. If the function fails the return value is one of the following: RFID_API_INVALID_HANDLE Handle provided is invalid RFID_API_PARAM_ERROR Invalid parameter given RFID_API_PARAM_OUT_OF_RANGE Parameter is out of Range RFID_FILTER_INVALID_INDEX Invalid Index Remarks: The Filter of matching filterIndex will be removed for the specified antennaID. If antennaID is zero, Filter of matching filterIndex will be removed for all Antenna, where-ever present. If filterIndex is zero, all Filters will be removed for the specified antennaID. If antennaID and filterIndex are both zero, all filters will be removed. See also: RFID_PerformInventory, RFID_StopInventory, RFID_AddPreFilter Remarks: Example: See RFID_AddPreFilter