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3)The description of the code
Private Sub Form_Load()
Form1.Show
'**********************************************************************
' Setting the labels (Initialization)
'**********************************************************************
Label1.Caption = "Data for transmission"
Label2.Caption = "Received data"
Command1.Caption = "Transmit"
Command2.Caption = "Clear"
Command3.Caption = "Exit"
'**********************************************************************
' Setup of communication (Initialization)
'**********************************************************************
MSComm1.RThreshold = 0
MSComm1.InputLen = 1
MSComm1.CommPort = 1
MSComm1.InBufferCount = 0
MSComm1.OutBufferCount = 0
Form1.MSComm1.Settings = "9600,E,8,1"
Form1.MSComm1.InputMode = comInputModeText
'**********************************************************************
' A serial port is opened. (Initialization)
'**********************************************************************
If False = MSComm1.PortOpen Then
MSComm1.PortOpen = True
End If
'**********************************************************************
' Data are received.
'**********************************************************************
Do
dummy = DoEvents()
If MSComm1.InBufferCount Then
Text1.Text = Text1.Text & MSComm1.Input
End If
Loop
End Sub
'**********************************************************************
' The contents of the text box are transmitted.
'**********************************************************************
Private Sub Command1_Click()
MSComm1.Output = Text2.Text & Chr(13)
End Sub
'**********************************************************************
'The contents of the text box are removed.
'**********************************************************************
Private Sub Command2_Click()
Text2.Text = ""
Text1.Text = ""
End Sub
'**********************************************************************
'A serial port is closed, end
'**********************************************************************
Private Sub Command3_Click()
If True = MSComm1.PortOpen Then
MSComm1.PortOpen = False
End If
End
End Sub
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