Function CAN_Read 

pub unsafe extern "C" fn CAN_Read(
    Channel: WORD,
    MessageBuffer: *mut CANTPMsg,
    TimestampBuffer: *mut CANTPTimestamp,
) -> DWORD

Reads a CAN message from the receive queue of a CAN Channel

"The handle of a CAN Channel" "A CANTPMsg structure buffer to store the CAN message" "A CANTPTimestamp structure buffer to get the reception time of the message. If this value is not desired, this parameter should be passed as NULL" "A CANTPStatus error code"