Visual Basic（.NET2002以降）¶

Dim id As Short
Dim result As Integer

Private Sub ResultShow(ByVal title As String, ByVal resultCode As Integer)
    Dim resultString As New StringBuilder(256)
    YdxCnvResultToString(resultCode, resultString)
    Select Case resultCode
        Case 0, Ydx.YDX_RESULT_DI_EXCEED_DATA_NUM, Ydx.YDX_RESULT_DI_EXCEED_BUF_SIZ
            MessageBox.Show(resultString.ToString(), title, MessageBoxButtons.OK, MessageBoxIcon.Asterisk)
        Case Else
            MessageBox.Show(resultString.ToString(), title, MessageBoxButtons.OK, MessageBoxIcon.Hand)
    End Select
End Sub

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    ' ユニット識別スイッチ
    unitSwitchComboBox.ResetText()
    unitSwitchComboBox.Items.AddRange(New String() { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F" })
    unitSwitchComboBox.SelectedIndex = 0

    ' 型名
    modelNameComboBox.ResetText()
    modelNameComboBox.Items.AddRange(New String() { "AIO-64/4/1B-USC", "AIO-04/4/1B-USC" })
    modelNameComboBox.SelectedIndex = 0
End Sub

Private Sub openButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles openButton.Click
    result = YdxOpen(unitSwitchComboBox.SelectedIndex, modelNameComboBox.Text, 0, id)
    If result <> 0 Then
        ResultShow("YdxOpen", result)
    Else
        unitSwitchComboBox.Enabled = False
        modelNameComboBox.Enabled = False
        ResultShow("オープン", result)
    End If
End Sub

Private Sub outputButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles outputButton.Click
    Const CHANNEL_NUM As Integer = 4
    Dim data(CHANNEL_NUM) As Single
    Dim dataText As String = ""
    For i As Integer = 0 To CHANNEL_NUM - 1
        Select Case (i)
            Case 0
                dataText = data0TextBox.Text
            Case 1
                dataText = data1TextBox.Text
            Case 2
                dataText = data2TextBox.Text
            Case 3
                dataText = data3TextBox.Text
        End Select

        Dim doubleData As Double
        If Double.TryParse(dataText, Globalization.NumberStyles.Float, Nothing, doubleData) = False Then
            MessageBox.Show("CH" + i.ToString() + "のデータが不正です", "", MessageBoxButtons.OK, MessageBoxIcon.Hand)
            Exit Sub
        End If

        data(i) = CType(doubleData, Single)
    Next

    result = YdxAoOutputVolt(id, 0, CHANNEL_NUM, 0, data)
    ResultShow("アナログ出力", result)
End Sub

Private Sub closeButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles closeButton.Click
    unitSwitchComboBox.Enabled = True
    modelNameComboBox.Enabled = True
    result = YdxClose(id)
    If result <> 0 Then
        ResultShow("YdxClose", result)
    Else
        ResultShow("クローズ", result)
    End If
End Sub

Private Sub Form1_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
    result = YdxClose(id)
    If result <> 0 And result <> YDX_RESULT_NOT_OPEN Then
        ResultShow("YdxClose", result)
    End If
End Sub