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Viewer Property

Summary

Gets or sets the viewer currently assigned for panning process by the control.

Syntax

C++

public RasterImageViewer Viewer { get; set; }

  
Public Property Viewer As Leadtools.Winforms.RasterImageViewer

public: 
property Leadtools.Winforms.RasterImageViewer^ Viewer { 
   Leadtools.Winforms.RasterImageViewer^ get(); 
   void set (    Leadtools.Winforms.RasterImageViewer^ ); 
}

Property Value

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

Remarks

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.

Example

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

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"; 
}

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

Requirements

Target Platforms

Reference

RasterImagePanViewer Class

RasterImagePanViewer Members

Help Version 19.0.2017.10.27

Leadtools.WinForms Assembly

Introduction

Getting Started

Namespaces

Leadtools.WinForms Namespace

Assemblies