Imports System.io

Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows フォーム デザイナで生成されたコード "

    Public Sub New()
        MyBase.New()

        ' この呼び出しは Windows フォーム デザイナで必要です。
        InitializeComponent()

        ' InitializeComponent() 呼び出しの後に初期化を追加します。

    End Sub

    ' Form は、コンポーネント一覧に後処理を実行するために dispose をオーバーライドします。
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    ' Windows フォーム デザイナで必要です。
    Private components As System.ComponentModel.IContainer

    ' メモ : 以下のプロシージャは、Windows フォーム デザイナで必要です。
    'Windows フォーム デザイナを使って変更してください。  
    ' コード エディタを使って変更しないでください。
    Friend WithEvents PictureBox1 As System.Windows.Forms.PictureBox
    Friend WithEvents Button1 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.PictureBox1 = New System.Windows.Forms.PictureBox
        Me.Button1 = New System.Windows.Forms.Button
        Me.SuspendLayout()
        '
        'PictureBox1
        '
        Me.PictureBox1.Location = New System.Drawing.Point(56, 24)
        Me.PictureBox1.Name = "PictureBox1"
        Me.PictureBox1.Size = New System.Drawing.Size(176, 160)
        Me.PictureBox1.TabIndex = 0
        Me.PictureBox1.TabStop = False
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(88, 216)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(96, 24)
        Me.Button1.TabIndex = 1
        Me.Button1.Text = "Button1"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 12)
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.PictureBox1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub


#End Region

    ' CAO Engine
    Private caoEng As CaoEngine
    ' CAO WorkSpace
    Private caoWS As CaoWorkspace
    ' uEye Camera CAO Controller
    Private ctrlCamera As CaoController

    Private Sub Form1_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosedEventArgs) Handles Me.FormClosed
        caoWS.Controllers.Remove(ctrlCamera.Index)
        SetNothing(ctrlCamera)
        SetNothing(caoWS)
        SetNothing(caoEng)
    End Sub

    Private Sub SetNothing(ByRef obj As Object)

        If (obj IsNot Nothing) And System.Runtime.InteropServices.Marshal.IsComObject(obj) Then
            System.Runtime.InteropServices.Marshal.ReleaseComObject(obj)
            obj = Nothing
        End If

    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        ' Create CAO Engine And Controller 
        caoEng = New CaoEngine
        caoWS = caoEng.Workspaces.Item(0)
        ctrlCamera = caoWS.AddController("Cam1", "CaoProv.IDS.uEye", "", "")
    End Sub


    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim bArray() As Byte

        ' Trigger And GetImage
        ctrlCamera.Execute("FreezeVideo")
        bArray = ctrlCamera.Execute("GetImage")

        Dim mstreamCur As New MemoryStream(bArray)
        PictureBox1.Image = Image.FromStream(mstreamCur)

    End Sub

End Class