Viewer Property (RasterImagePanViewer)

C#
Visual Basic
Objective-C
Java
C++

public RasterImageViewer Viewer {get; set;}

'Declaration
 
Public Property Viewer As RasterImageViewer

'Usage
 
Dim instance As RasterImagePanViewer
Dim value As RasterImageViewer
 
instance.Viewer = value
 
value = instance.Viewer

public:
property RasterImageViewer^ Viewer {
   RasterImageViewer^ get();
   void set (    RasterImageViewer^ value);
}

Property Value

The viewer object, which has an image to be pan using the RasterImagePanViewer control.

This property contains the RasterImageViewer object which contains an image to be pan using the RasterImagePanViewer control. Whenever the Viewer property is changed, the image displayed in the RasterImagePanViewer control is updated.

This example shows how to use a pan window with a RasterImageViewer

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools.WinForms
Imports Leadtools
Imports Leadtools.Codecs

Private Class MyForm1 : Inherits Form
   Public panViewer As RasterImagePanViewer
   Public viewer As RasterImageViewer
   Public Sub New(ByVal title As String)
      Text = title
      ' Set the size of the form
      Size = New Size(400, 400)

      ' Create the viewer
      viewer = New RasterImageViewer()
      viewer.Size = New Size(Size.Width, Size.Height \ 2)
      viewer.Dock = DockStyle.Fill

      ' Load an image
      Dim codecs As RasterCodecs = New RasterCodecs()
      viewer.Image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp"))

      panViewer = New RasterImagePanViewer()
      panViewer.Dock = DockStyle.Top
      panViewer.BackColor = Color.Bisque
      panViewer.ClipCursor = True
      panViewer.BorderStyle = BorderStyle.Fixed3D
      panViewer.BringToFront()
      AddHandler panViewer.Pan, AddressOf panViewer_Pan
      panViewer.RectangleColor = Color.Blue
      panViewer.ImageColor = Color.FromArgb(128, 0, 0, 0)
      panViewer.Cursor = Cursors.Hand
      panViewer.Viewer = viewer

      Controls.Add(panViewer)
      Controls.Add(viewer)
      viewer.BringToFront()
   End Sub

   Private Sub panViewer_Pan(ByVal sender As Object, ByVal e As RasterImagePanViewerEventArgs)
      Select Case e.Status
         Case RasterImagePanViewerStatus.Begin, RasterImagePanViewerStatus.Panning, RasterImagePanViewerStatus.End
            Text = "Pan Status = " & e.Status.ToString() & " Rectangle =" & e.Rectangle.ToString() & " Cancel = " & e.Cancel.ToString()
            Console.WriteLine(Text)
            Exit Select
      End Select
   End Sub
End Class

Public Sub RasterImagePanViewer_Viewer()
   Dim form As MyForm1 = New MyForm1("Test_RasterImagePanViewer_Viewer")
   form.ShowDialog()
End Sub

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

using Leadtools.WinForms;
using Leadtools;
using Leadtools.Codecs;

class MyForm1 : Form
{
   public RasterImagePanViewer panViewer;
   public RasterImageViewer viewer;
   public MyForm1(string title)
   {
      Text = title;
      // Set the size of the form
      Size = new Size(400, 400);

      // Create the viewer
      viewer = new RasterImageViewer();
      viewer.Size = new Size(Size.Width, Size.Height / 2);
      viewer.Dock = DockStyle.Fill;

      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      viewer.Image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp"));

      panViewer = new RasterImagePanViewer();
      panViewer.Dock = DockStyle.Top;
      panViewer.BackColor = Color.Bisque;
      panViewer.ClipCursor = true;
      panViewer.BorderStyle = BorderStyle.Fixed3D;
      panViewer.BringToFront();
      panViewer.Pan += new EventHandler<RasterImagePanViewerEventArgs>(panViewer_Pan);
      panViewer.RectangleColor = Color.Blue;
      panViewer.ImageColor = Color.FromArgb(128, 0, 0, 0);
      panViewer.Cursor = Cursors.Hand;
      panViewer.Viewer = viewer;

      Controls.Add(panViewer);
      Controls.Add(viewer);
      viewer.BringToFront();
   }

   private void panViewer_Pan(object sender, RasterImagePanViewerEventArgs e)
   {
      switch (e.Status)
      {
         case RasterImagePanViewerStatus.Begin:
         case RasterImagePanViewerStatus.Panning:
         case RasterImagePanViewerStatus.End:
            {
               Text = "Pan Status = " + e.Status.ToString() + " Rectangle =" + e.Rectangle.ToString() + " Cancel = " + e.Cancel.ToString();
               Console.WriteLine(Text);
               break;
            }
      }
   }
}

public void RasterImagePanViewer_Viewer()
{
   MyForm1 form = new MyForm1("Test_RasterImagePanViewer_Viewer");
   form.ShowDialog();
}

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

Target Platforms

Reference

RasterImagePanViewer Class
RasterImagePanViewer Members