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This function gets the current state of the specified GPO port.
- Parameters:
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| [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
- See also:
- RFID_SetGPOState, RFID_EnableGPIPort, RFID_GetGPIState
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