Serial Port Complete - Latest Microcontroller projects

Managing Ports and Transfers in .NET

 IAsyncResult ar;
String msg;
String textToWrite;

// Text to write to the port.

textToWrite = "hello, world";

// A value to pass to the callback routine (optional).

msg = DateTime.Now.ToString();

// Call a routine to write to the COM port.

ar = WriteToComPortDelegate1.BeginInvoke

(textToWrite, new AsyncCallback(WriteCompleted), msg);

The BeginInvoke method calls WriteToComPort, which is the routine named

in the declaration of WriteToComPortDelegate1:

 Friend Function WriteToComPort(ByVal textToWrite As String) As Boolean

Dim success As Boolean

If myComPort.IsOpen Then

' Write the passed String to the port.

myComPort.Write(textToWrite)

success = True

End If

Return success

End Sub