| Open/Close |
|---|
| Close | Closes previously opened communication port. |
| Open | Opens specified serial port and sets up its parameters. |
| SetSettingsFromString | Sets serial port settings from the string. |
| Serial Ports Enumeration |
|---|
| EnumSerialPorts | Refreshes information about serial ports and returns their number. |
| GetSerialPort | Retrieves string value of serial port name. |
| GetSerialPortDescription | Retrieves string description of serial port. |
| Read/Write |
|---|
| Read | Reads specified number of bytes from serial port. |
| ReadArray | Reads specified number of bytes from serial port to array. |
| ReadArrayOverlapped | Performs an asynchronous read operation (overlapped) into safe array of bytes. |
| ReadOverlapped | Performs an asynchronous read operation (overlapped). |
| Write | Writes specified number of bytes to serial port. |
| WriteArray | Writes specified number of bytes from array to serial port. |
| WriteArrayOverlapped | Performs an asynchronous write operation (overlapped) of safe array data. |
| WriteOverlapped | Performs an asynchronous write operation (overlapped). |
| Other Methods |
|---|
| CancelIO | Cancels all pending I/O operations. |
| Flush | Forces a write all buffered data for the FIFO and waits for completion. |
| GetLastError | Returns error code for last operation. |
| PurgeQueue | Purges input or/and output queue(s). |
| SetBreak | Suspends/restores character transmission. |