![]() If the registry contains stale or otherwise incorrect data then the GetPortNames method will return incorrect data. Serial and parallel interfaces are two different types of computer ports. The port names are obtained from the system registry (for example, HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\SERIALCOMM). For example, you can use this method to determine whether COM1 and COM2 are valid serial ports for the current computer. ![]() Use the GetPortNames method to query the current computer for a list of valid serial port names. The order of port names returned from GetPortNames is not specified. ![]() ' Insert this code into a new VB Console application project, and set theĭim ports As String() = SerialPort.GetPortNames()Ĭonsole.WriteLine("The following serial ports were found:") more than once at the same time (either via Telnet or the serial port). String ports = SerialPort.GetPortNames() Ĭonsole.WriteLine("The following serial ports were found:") Define the following fields: System Name, System Contact, and System Location. Display each port name to the console. SerialPorts = SerialPort::GetPortNames() Ĭonsole::WriteLine("The following serial ports were found:") If it is necessary to switch between reading text and reading binary data from the stream, select a protocol that carefully defines the boundary between text and binary data, such as manually reading bytes and decoding the data. In my examples, I have the system name and the serial line printed. The following code example uses the GetPortNames method to display serial port names to the console. Use this method for reading characters from the serial port. In order to have a login process run on a serial port (and the terminal connected to. By default the port is opened with 8 data bits, 1 stop bit and no parity checking. The serial port names could not be queried. SerialPort.open () Returns a Promise that resolves when the port is opened.
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