Assembly: Microsoft.VisualBasic (in microsoft.visualbasic.dll)
For more detailed information, see the Visual Basic topic My.Computer.Ports Object.
The My.Computer.Ports object provides a straightforward entry point for accessing the .NET Framework serial port class, SerialPort.
The following table lists examples of tasks involving the My.Computer.Ports object.
Dial a modem attached to a serial port
Send a string to a serial port
Receive strings from a serial port
Show available serial ports
This example describes how to send strings to the computer's COM1 serial port.
The Using block allows the application to close the serial port even if it generates an exception. All code that manipulates the serial port should appear within this block, or within a Try...Catch...Finally block with a call to use the Close method.
The WriteLine method sends the data to the serial port.
Sub SendSerialData(ByVal data As String) ' Send strings to a serial port. Using com1 As IO.Ports.SerialPort = _ My.Computer.Ports.OpenSerialPort("COM1") com1.WriteLine(data) End Using End Sub
For more information, see How to: Send Strings to Serial Ports in Visual Basic.
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
Other ResourcesMy.Computer.Ports Object
My.Computer.Ports Object Members
How to: Dial Modems Attached to Serial Ports in Visual Basic
How to: Send Strings to Serial Ports in Visual Basic
How to: Receive Strings From Serial Ports in Visual Basic
How to: Show Available Serial Ports in Visual Basic