My.Computer.Ports Object

發行項
11/18/2006

Provides a property and a method for accessing the computer's serial ports.

Remarks

The My.Computer.Ports object provides a straightforward entry point for accessing the .NET Framework serial port class, SerialPort.

Tasks

The following table lists examples of tasks involving the My.Computer.Ports object.

To	See
Dial a modem attached to a serial port	How to: Dial Modems Attached to Serial Ports in Visual Basic
Send a string to a serial port	How to: Send Strings to Serial Ports in Visual Basic
Receive strings from a serial port	How to: Receive Strings From Serial Ports in Visual Basic
Show available serial ports	How to: Show Available Serial Ports in Visual Basic

Example

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.

Requirements

Namespace: Microsoft.VisualBasic.Devices

Class: Ports

Assembly: Visual Basic Runtime Library (in Microsoft.VisualBasic.dll)

Availability by Project Type

Project type	Available
Windows Application	Yes
Class Library	Yes
Console Application	Yes
Windows Control Library	Yes
Web Control Library	No
Windows Service	Yes
Web Site	No

共用方式為

My.Computer.Ports Object

Remarks

Tasks

Example

Requirements

Availability by Project Type

See Also

Tasks

Reference

其他資源