hallo,
habe diesen code zur Auswertung einer Fernbedienung:
1 | Private Sub SerialPort1_DataReceived(ByVal sender As Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles SerialPort1.DataReceived
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2 | ReceivedText(SerialPort1.ReadExisting()) 'Automatically called every time a data is received at the serialPort
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3 | End Sub
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4 | Private Sub ReceivedText(ByVal [text] As String)
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5 | 'compares the ID of the creating Thread to the ID of the calling Thread
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6 | If Me.rtbReceived.InvokeRequired Then
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7 | Dim x As New SetTextCallback(AddressOf ReceivedText)
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8 | Me.Invoke(x, New Object() {(text)})
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9 |
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10 | Else
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11 | Me.rtbReceived.Text &= [text]
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12 | End If
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13 |
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14 | If Strings.Left(text, 1) = "$" And Strings.Right(text, 1) = "$" Then
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15 | 'Beep()
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16 | Dim twx_cmd As Byte
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17 | twx_cmd = Mid(text, 2, 3)
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18 | Select Case twx_cmd
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19 | Case 25 'zif-1
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20 | If st_modus = "radio" Then
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21 | Button1_Click(Nothing, Nothing)
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22 | End If
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23 | Case 49 'zif-2
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24 | If st_modus = "radio" Then
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25 | Button2_Click(Nothing, Nothing)
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26 | End If
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27 | Case 189 'zif-3
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28 | If st_modus = "radio" Then
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29 | Button3_Click(Nothing, Nothing)
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30 | End If
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31 | Case 17 'zif-4
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32 | Case 57 'zif-5
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33 | Case 181 'zif-6
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34 | Case 133 'zif-7
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35 | Case 165 'zif-8
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36 | Case 149 'zif-9
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37 | Case 27 'zif-0
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38 |
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39 |
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40 | Case 137 '2-1 mod
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41 | If st_modus = "radio" Then
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42 | Button11_Click(Nothing, Nothing)
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43 | End If
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44 | If st_modus = "mp3_playlist" Then
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45 | Button1_Click(Nothing, Nothing)
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46 | End If
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47 |
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48 |
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49 | End Select
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50 |
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51 | End If
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52 |
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53 |
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54 | End Sub
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fb25/49/189 funktioniert, fb137 kommt Fehlermeldung:
Ungültiger threadübergreifender Vorgang: Der Zugriff auf das
Steuerelement ListBox1 erfolgte von einem anderen Thread als dem Thread,
für den es erstellt wurde.
Wieso hab ich ab hier
'compares the ID of the creating Thread to the ID of the calling
Thread
zwei threads und wie greife ich auf den anderen thread zu?
