/// <summary>
/// Sets the timeouts for the serial port communication.
/// </summary>
/// <param name="timeouts">Timeouts to be set.</param>
public void SetTimeouts(SerialPortTimeouts timeouts)
{
if (!Win32Api.SetCommTimeouts(m_fileHandle, ref timeouts))
{
throw new Win32Exception(Win32Api.GetLastError(), "'SetCommTimeouts()' failed");
}
}
/// <summary>
/// Sets the state (config parameters) on the serial port.
/// </summary>
/// <param name="state">The configuation to be applied to the serial port.</param>
public void SetState(SerialPortState state)
{
if (!IsOpen)
{
throw new InvalidOperationException("Port is not open.");
}
if (!Win32Api.SetCommState(m_fileHandle, ref state))
{
throw new Win32Exception(Win32Api.GetLastError(), "'SetCommState()' failed");
}
}
/// <summary>
/// Gets the timeouts currently set for the serial port communication.
/// </summary>
/// <returns>The timeouts currently set.</returns>
public SerialPortTimeouts GetTimeouts()
{
if (!IsOpen)
{
throw new InvalidOperationException("Port is not open.");
}
SerialPortTimeouts commTimeouts = new SerialPortTimeouts();
if (!Win32Api.GetCommTimeouts(m_fileHandle, ref commTimeouts))
{
throw new Win32Exception(Win32Api.GetLastError(), "'GetCommTimeouts()' failed");
}
return(commTimeouts);
}
/// <summary>
/// Writes data to the serial port.
/// </summary>
/// <param name="data">The data to be written.</param>
/// <param name="offset">(Not used)</param>
/// <param name="count">Number of bytes from the data array to be written into the port.</param>
/// <returns>Number of bytes actually written.</returns>
public int Write(byte[] data, int offset, int count)
{
if (!IsOpen)
{
throw new InvalidOperationException("Port is not open.");
}
uint bytesWritten = 0;
if (!Win32Api.WriteFile(m_fileHandle, data, (uint)count, out bytesWritten, IntPtr.Zero))
{
throw new Win32Exception(Win32Api.GetLastError(), "'WriteFile()' failed");
}
return((int)bytesWritten);
}
/// <summary>
/// Gets the current state (config parameters) set on the serial port.
/// </summary>
/// <returns>The current serial port state.</returns>
public SerialPortState GetState()
{
if (!IsOpen)
{
throw new InvalidOperationException("Port is not open.");
}
SerialPortState dcb = new SerialPortState();
if (!Win32Api.GetCommState(m_fileHandle, ref dcb))
{
throw new Win32Exception(Win32Api.GetLastError(), "'GetCommState()' failed");
}
return(dcb);
}
