This example creates a new AnnContainer object, links it to a RasterImageViewer object, adds a few objects and then draws the container on top of the viewer. Moving the mouse over an object displays the object type in the title bar.

Visual Basic

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Private Class MyForm1 : Inherits Form    Private myAnnContainer As AnnContainer    'AnnAutomationManager manager;    Private viewer As RasterImageViewer    Private codecs As RasterCodecs    Public Sub New(ByVal title As String)       Text = title       Size = New Size(500, 200)       viewer = New RasterImageViewer()       viewer.Dock = DockStyle.Fill       Controls.Add(viewer)       viewer.BringToFront()       ' load an image into the viewer       RasterCodecs.Startup()       codecs = New RasterCodecs()       viewer.Image = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "image1.cmp") ' fix this path to an existing image file on your system       RasterCodecs.Shutdown()       ' create and set up the container       myAnnContainer = New AnnContainer()       myAnnContainer.Bounds = New AnnRectangle(0, 0, viewer.ImageSize.Width, viewer.ImageSize.Height)       myAnnContainer.UnitConverter = New AnnUnitConverter(viewer.ImageDpiX, viewer.ImageDpiY)       ' subscribe to the view PostTransformPaint and TransformChanged events to be able to correctly draw the container       AddHandler viewer.PostImagePaint, AddressOf viewer_PostImagePaint       AddHandler viewer.TransformChanged, AddressOf viewer_TransformChanged       AddHandler viewer.MouseMove, AddressOf viewer_MouseMove       ' add a few objects to the container       Dim line As AnnLineObject = New AnnLineObject()       line.Name = "Line1"       line.Pen = New AnnPen(Color.Red, New AnnLength(1, AnnUnit.Pixel))       line.StartPoint = New AnnPoint(0, 0, AnnUnit.Pixel)       line.EndPoint = New AnnPoint(100, 100, AnnUnit.Pixel)       myAnnContainer.Objects.Add(line)       Dim rect As AnnRectangleObject = New AnnRectangleObject()       rect.Name = "Rectangle1"       rect.Pen = New AnnPen(Color.Blue, New AnnLength(1, AnnUnit.Pixel))       rect.Brush = New AnnSolidBrush(Color.White)       rect.Bounds = New AnnRectangle(25, 25, 50, 50, AnnUnit.Pixel)       myAnnContainer.Objects.Add(rect)       ' repaint the viewer       viewer.Invalidate(myAnnContainer.InvalidRectangle)    End Sub    Private Sub viewer_PostImagePaint(ByVal sender As Object, ByVal e As PaintEventArgs)       ' draw the container on top of the viewer       myAnnContainer.Draw(e.Graphics)    End Sub    Private Sub viewer_TransformChanged(ByVal sender As Object, ByVal e As EventArgs)       ' keep the container transform in synch with current viewer transformation (zoom, scroll, etc)       myAnnContainer.Transform = viewer.Transform.Clone()    End Sub    Private Sub viewer_MouseMove(ByVal sender As Object, ByVal e As MouseEventArgs)       ' perform hit-testing and update the status bar       Dim pt As AnnPoint = New AnnPoint(e.X, e.Y, AnnUnit.Pixel)       Dim obj As AnnObject = myAnnContainer.HitTest(pt, 2)       If Not obj Is Nothing Then          Text = String.Format("Type: {0}, Name: {1}, Value: {2}", obj.GetType().Name, obj.Name, obj.HitTest(pt, 2))       Else          Text = String.Empty       End If    End Sub End Class Private Sub AnnContainer_AnnContainer(ByVal title As String)    Dim form As MyForm1 = New MyForm1(title)    form.ShowDialog() End Sub

C#

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class MyForm1 : Form  {     AnnContainer container;     //AnnAutomationManager manager;     RasterImageViewer viewer;     RasterCodecs codecs;     public MyForm1(string title)     {        Text = title;        Size = new Size(500, 200);          viewer = new RasterImageViewer();        viewer.Dock = DockStyle.Fill;        Controls.Add(viewer);        viewer.BringToFront();          // load an image into the viewer        RasterCodecs.Startup();        codecs = new RasterCodecs();        string fileName = LeadtoolsExamples.Common.ImagesPath.Path + "image1.cmp";        viewer.Image = codecs.Load(fileName);        RasterCodecs.Shutdown();          // create and set up the container        container = new AnnContainer();        container.Bounds = new AnnRectangle(0, 0, viewer.ImageSize.Width, viewer.ImageSize.Height);        container.UnitConverter = new AnnUnitConverter(viewer.ImageDpiX, viewer.ImageDpiY);          // subscribe to the view PostTransformPaint and TransformChanged events to be able to correctly draw the container        viewer.PostImagePaint += new PaintEventHandler(viewer_PostImagePaint);        viewer.TransformChanged += new EventHandler(viewer_TransformChanged);        viewer.MouseMove += new MouseEventHandler(viewer_MouseMove);          // add a few objects to the container        AnnLineObject line = new AnnLineObject();        line.Name = "Line1";        line.Pen = new AnnPen(Color.Red, new AnnLength(1, AnnUnit.Pixel));        line.StartPoint = new AnnPoint(0, 0, AnnUnit.Pixel);        line.EndPoint = new AnnPoint(100, 100, AnnUnit.Pixel);        container.Objects.Add(line);          AnnRectangleObject rect = new AnnRectangleObject();        rect.Name = "Rectangle1";        rect.Pen = new AnnPen(Color.Blue, new AnnLength(1, AnnUnit.Pixel));        rect.Brush = new AnnSolidBrush(Color.White);        rect.Bounds = new AnnRectangle(25, 25, 50, 50, AnnUnit.Pixel);        container.Objects.Add(rect);          // repaint the viewer        viewer.Invalidate(container.InvalidRectangle);     }       private void viewer_PostImagePaint(object sender, PaintEventArgs e)     {        // draw the container on top of the viewer        container.Draw(e.Graphics);     }       private void viewer_TransformChanged(object sender, EventArgs e)     {        // keep the container transform in synch with current viewer transformation (zoom, scroll, etc)        container.Transform = viewer.Transform.Clone();     }       private void viewer_MouseMove(Object sender, MouseEventArgs e)     {        // perform hit-testing and update the status bar        AnnPoint pt = new AnnPoint(e.X, e.Y, AnnUnit.Pixel);        AnnObject obj = container.HitTest(pt, 2);        if(obj != null)           Text = string.Format("Type: {0}, Name: {1}, Value: {2}", obj.GetType().Name, obj.Name, obj.HitTest(pt, 2));        else           Text = string.Empty;     }  }          private void AnnContainer_AnnContainer(string title)  {     MyForm1 form = new MyForm1(title);     form.ShowDialog();  }

System.Object
   Leadtools.Annotations.AnnContainer

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

Reference