RFID_STATUS WINAPI RFID_GetGPOState ( RFID_HANDLE32  readerHandle,
UINT32  portNumber,
BOOLEAN *  pGPOState 
)

This function gets the current state of the specified GPO port.

Parameters:
[in] readerHandle 
Handle to the RFID device.
[in] portNumber 
Port Number of the GPO Port.
[out] pGPOState 
Pointer to current state of the specified GPO port.
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 Invalid handle is provided
  • RFID_API_PARAM_ERROR Invalid parameter given
  • RFID_API_PARAM_OUT_OF_RANGE Parameter out of Range
  • RFID_CONFIG_GET_FAILED Failed to get the configuration
Remarks:
None
See also:
RFID_SetGPOState, RFID_EnableGPIPort, RFID_GetGPIState
Remarks:
Example: See


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