<DesignerAttribute(DesignerBaseTypeName="System.ComponentModel.Design.IDesigner", DesignerTypeName="Leadtools.WinForms.RasterImageViewerDesigner, Leadtools.WinForms, Version=17.0.0.0, Culture=neutral, PublicKeyToken=null")>
<ToolboxBitmapAttribute()>
Public Class RasterImageViewer 
   Inherits System.Windows.Forms.Control
   Implements IComponent, ISynchronizeInvoke, IDisposable, IBindableComponent, IDropTarget, IWin32Window 

Dim instance As RasterImageViewer

[DesignerAttribute(DesignerBaseTypeName="System.ComponentModel.Design.IDesigner", DesignerTypeName="Leadtools.WinForms.RasterImageViewerDesigner, Leadtools.WinForms, Version=17.0.0.0, Culture=neutral, PublicKeyToken=null")]
[ToolboxBitmapAttribute()]
public class RasterImageViewer : System.Windows.Forms.Control, IComponent, ISynchronizeInvoke, IDisposable, IBindableComponent, IDropTarget, IWin32Window  

[DesignerAttribute(DesignerBaseTypeName="System.ComponentModel.Design.IDesigner", DesignerTypeName="Leadtools.WinForms.RasterImageViewerDesigner, Leadtools.WinForms, Version=17.0.0.0, Culture=neutral, PublicKeyToken=null")]
[ToolboxBitmapAttribute()]
public ref class RasterImageViewer : public System.Windows.Forms.Control, IComponent, ISynchronizeInvoke, IDisposable, IBindableComponent, IDropTarget, IWin32Window  

Public Sub RasterImageViewer_RasterImageViewer()
      Dim form As MyForm1 = New MyForm1()
      form.ShowDialog()
   End Sub

   Private Class MyForm1 : Inherits Form
      Private theViewer As RasterImageViewer

      Public Sub New()
         ' Create the raster viewer
         theViewer = New RasterImageViewer()
         theViewer.Dock = DockStyle.Fill
         theViewer.DoubleBuffer = True
         theViewer.BorderStyle = BorderStyle.Fixed3D
         theViewer.AutoResetScaleFactor = True
         theViewer.AutoResetScrollPosition = True
         theViewer.HorizontalAlignMode = RasterPaintAlignMode.Center
         theViewer.VerticalAlignMode = RasterPaintAlignMode.Far
         theViewer.FrameSize = New SizeF(10, 5)
         theViewer.FrameColor = Color.Red
         theViewer.FramesIsPartOfImage = True
         theViewer.FrameShadowSize = New SizeF(5, 5)
         theViewer.FrameShadowColor = Color.Blue
         theViewer.AutoScroll = True
         theViewer.UseDpi = True

         ' Set the paint properties
         Dim p As RasterPaintProperties = New RasterPaintProperties()
         p.PaintDisplayMode = RasterPaintDisplayModeFlags.Bicubic
         p.PaintEngine = RasterPaintEngine.GdiPlus
         p.UsePaintPalette = True
         theViewer.PaintProperties = p

         theViewer.AnimateRegion = True
         theViewer.EnableTimer = True
         theViewer.EnableScrollingInterface = True

         Controls.Add(theViewer)
         theViewer.BringToFront()

         ' load an image into the viewer
         Dim codecs As RasterCodecs = New RasterCodecs()
         theViewer.Image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Sample1.cmp"))
         codecs.Dispose()

         Text = String.Format("Size mode = {0}, double click to change", theViewer.SizeMode)

         AddHandler theViewer.DoubleClick, AddressOf theViewer_DoubleClick
      End Sub

      Private Sub theViewer_DoubleClick(ByVal sender As Object, ByVal e As EventArgs)
         Select Case theViewer.SizeMode
            Case RasterPaintSizeMode.Normal
               theViewer.SizeMode = RasterPaintSizeMode.Stretch

            Case RasterPaintSizeMode.Stretch
               theViewer.SizeMode = RasterPaintSizeMode.Fit

            Case RasterPaintSizeMode.Fit
               theViewer.SizeMode = RasterPaintSizeMode.FitAlways

            Case RasterPaintSizeMode.FitAlways
               theViewer.SizeMode = RasterPaintSizeMode.FitWidth

            Case RasterPaintSizeMode.FitWidth
               theViewer.SizeMode = RasterPaintSizeMode.Normal
         End Select

         Text = String.Format("Size mode = {0}, double click to change", theViewer.SizeMode)

         MyBase.OnDoubleClick(e)
      End Sub
   End Class

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

public void RasterImageViewer_RasterImageViewer()
   {
      MyForm1 form = new MyForm1();
      form.ShowDialog();
   }

   class MyForm1 : Form
   {
      RasterImageViewer theViewer;

      public MyForm1()
      {
         // Create the raster viewer
         theViewer = new RasterImageViewer();
         theViewer.Dock = DockStyle.Fill;
         theViewer.DoubleBuffer = true;
         theViewer.BorderStyle = BorderStyle.Fixed3D;
         theViewer.AutoResetScaleFactor = true;
         theViewer.AutoResetScrollPosition= true;
         theViewer.HorizontalAlignMode = RasterPaintAlignMode.Center;
         theViewer.VerticalAlignMode = RasterPaintAlignMode.Far;
         theViewer.FrameSize = new SizeF(10,5);
         theViewer.FrameColor = Color.Red;
         theViewer.FramesIsPartOfImage = true;
         theViewer.FrameShadowSize = new SizeF(5, 5);
         theViewer.FrameShadowColor = Color.Blue;
         theViewer.AutoScroll = true;
         theViewer.UseDpi = true;

         // Set the paint properties
         RasterPaintProperties p = new RasterPaintProperties();
         p.PaintDisplayMode = RasterPaintDisplayModeFlags.Bicubic;
         p.PaintEngine = RasterPaintEngine.GdiPlus;
         p.UsePaintPalette = true;
         theViewer.PaintProperties = p;

         theViewer.AnimateRegion = true;
         theViewer.EnableTimer = true;
         theViewer.EnableScrollingInterface = true;

         Controls.Add(theViewer);
         theViewer.BringToFront();

         // load an image into the viewer
         RasterCodecs codecs = new RasterCodecs();
         theViewer.Image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Sample1.cmp"));
         codecs.Dispose();

         Text = string.Format("Size mode = {0}, double click to change", theViewer.SizeMode);

         theViewer.DoubleClick += new EventHandler(theViewer_DoubleClick);
      }

      void theViewer_DoubleClick(object sender, EventArgs e)
      {
         switch (theViewer.SizeMode)
         {
            case RasterPaintSizeMode.Normal:
               theViewer.SizeMode = RasterPaintSizeMode.Stretch;
               break;

            case RasterPaintSizeMode.Stretch:
               theViewer.SizeMode = RasterPaintSizeMode.Fit;
               break;

            case RasterPaintSizeMode.Fit:
               theViewer.SizeMode = RasterPaintSizeMode.FitAlways;
               break;

            case RasterPaintSizeMode.FitAlways:
               theViewer.SizeMode = RasterPaintSizeMode.FitWidth;
               break;

            case RasterPaintSizeMode.FitWidth:
               theViewer.SizeMode = RasterPaintSizeMode.Normal;
               break;
         }

         Text = string.Format("Size mode = {0}, double click to change", theViewer.SizeMode);

         base.OnDoubleClick(e);
      }
   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}