explanation on read method

[stephaniee]

Can anyone tell me why serialport.read (combuffer, 0, bytes)?

whereby

 void comPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            //retrieve number of bytes in the buffer
            int bytes = comPort.BytesToRead;
            //create a byte array to hold the awaiting data
            byte[] comBuffer = new byte[bytes];
            //read the data and store it
            comPort.Read(comBuffer, 0, bytes);
            //display the data to the user
            DisplayData(MessageType.Incoming, ByteToHex(comBuffer) + "\n");

[tlhintoq]

Tell you why it.... ?? What?

The code sample you supplied is well commented. Are you receiving an error?

[stephaniee]

comPort.Read(co mBuffer, 0, bytes);

i dont really understand this type.
tell me if im wrong..

combuffer is a byte array and will be stored as bytes. what does '0' mean?

[RedSon]

It probably means start at the 0th element of comBuffer. You should use your IDE to read up on how the API works.

If you are doing this in VB highlight the API you want to inspect and hit F1.

[tlhintoq]

If you don't understand something in the framework just go to the MSDN and read about it.

http://msdn.microsoft.com/en-us/library/ms143549.aspx

Holds a complete explanation of the .Read() method and it's overloads.

[RedSon]

Yea or search MSDN directly, which is what your F1 button does too.

[tlhintoq]

I'm a big user of Google with "MSDN {what I am looking for}"
such as MSDN SerialPort in this case.

It just seems Google can index the MSDN better than MSDN's own search.