2020. 2. 11. 05:22ㆍ카테고리 없음
Installation into Microsoft Visual C#.Net/ Microsoft Visual VB.Net To install Serial Port Sniffer ActiveX Control into Visual Studio, click “Tools-Add/remove Toolbox Items” menu item, select “COM Components” tab in “Customize Toolbox” window, choose “Serial Port Sniffer ActiveX Control” and press “OK” button. Now you can drag and drop control to the form and use all methods and events provided by Serial Port Sniffer ActiveX Control. For more information see the example source code for MS Visual C.Net and MS Visual C. Installation into Microsoft Visual C.Net/ Visual C 6.0 To install Serial Port Sniffer ActiveX Control into Visual Studio, right-click the form and select “Insert ActiveX Control” menu item, select “COM Components” tab in “Customize Toolbox” window, click and choose “Serial Port Sniffer ActiveX Control” and press “OK” button. Now you can drag and drop control to the form and use all methods and events provided by Serial Port Sniffer ActiveX Control. Installation into Microsoft Visual Basic 5-6 To install Serial Port Sniffer ActiveX Control into Visual Basic, click Project-Components menu item and choose “Serial Port Sniffer ActiveX Control”. Now you can drag and drop control to the form and use all methods and events provided by Serial Port Sniffer ActiveX Control.
For more information see the example source code for MS Visual Basic 6. Installation into Delphi and Builder To install Serial Port Sniffer ActiveX Control into your IDE, please, open project package, depending on your IDE, which is located in: Installation folder Packages Builder spsax.bpk – for Builder Installation folder Packages Delphi spsax.bpk – for Delphi Then you should compile and install it to your IDE: Builder Delphi Builder 2007, Delphi 2007.
This topic describes how to use My.Computer.Ports to receive strings from the computer's serial ports in Visual Basic. To receive strings from the serial port. Initialize the return string.
Dim returnStr As String = '. Determine which serial port should provide the strings.
This example assumes it is COM1. Use the My.Computer.Ports.OpenSerialPort method to obtain a reference to the port. For more information, see. The Try.Catch.Finally 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. Dim com1 As IO.Ports.SerialPort = Nothing Try com1 = My.Computer.Ports.OpenSerialPort('COM1') com1.ReadTimeout = 10000 Catch ex As TimeoutException returnStr = 'Error: Serial Port read timed out.'
Finally If com1 IsNot Nothing Then com1.Close End Try. Create a Do loop for reading lines of text until no more lines are available. Do Loop. Use the method to read the next available line of text from the serial port. Dim Incoming As String = com1.ReadLine.
Serial Port Sniffer
Use an If statement to determine if the method returns Nothing (which means no more text is available). If it does return Nothing, exit the Do loop. If Incoming Is Nothing Then Exit Do End If.
Add an Else block to the If statement to handle the case if the string is actually read. The block appends the string from the serial port to the return string. Else returnStr &= Incoming & vbCrLf. Return the string.
Vb6 Serial Port Sniffer Source Code
Return returnStr Example Function ReceiveSerialData As String ' Receive strings from a serial port. Dim returnStr As String = ' Dim com1 As IO.Ports.SerialPort = Nothing Try com1 = My.Computer.Ports.OpenSerialPort('COM1') com1.ReadTimeout = 10000 Do Dim Incoming As String = com1.ReadLine If Incoming Is Nothing Then Exit Do Else returnStr &= Incoming & vbCrLf End If Loop Catch ex As TimeoutException returnStr = 'Error: Serial Port read timed out.' Finally If com1 IsNot Nothing Then com1.Close End Try Return returnStr End Function This code example is also available as an IntelliSense code snippet.
In the code snippet picker, it is located in Connectivity and Networking. For more information, see. Compiling the Code This example assumes the computer is using COM1. Robust Programming This example assumes the computer is using COM1. For more flexibility, the code should allow the user to select the desired serial port from a list of available ports. For more information, see. This example uses a Try.Catch.Finally block to make sure that the application closes the port and to catch any timeout exceptions.
For more information, see.