CropCommand Class

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public class CropCommand : RasterCommand, IRasterCommand

'Declaration
 
Public Class CropCommand 
   Inherits RasterCommand
   Implements IRasterCommand

'Usage
 
Dim instance As CropCommand

public sealed class CropCommand : IRasterCommand

function Leadtools.ImageProcessing.CropCommand()

public ref class CropCommand : public RasterCommand, IRasterCommand

If a region is defined for the image, the region is also cropped if necessary.

For more information, refer to Introduction to Image Processing With LEADTOOLS.

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

Public Sub CropCommandExample()
      Dim codecs As RasterCodecs = New RasterCodecs()

      Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
      Dim destFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "CropCommand.bmp")

      ' Load the source image from disk
      Dim image As RasterImage = codecs.Load(srcFileName)

      ' Crop 100 pixels from each side of the image
      Dim command As CropCommand = New CropCommand()
      command.Rectangle = New LeadRect(100, 100, image.Width - 100, image.Height - 100)
      command.Run(image)

      ' Save it to disk
      codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24)

      ' Clean Up
      image.Dispose()
   End Sub

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

public void CropCommandExample()
   {
      RasterCodecs codecs = new RasterCodecs();

      string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
      string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "CropCommand.bmp");

      // Load the source image from disk
      RasterImage image = codecs.Load(srcFileName);

      // Crop 100 pixels from each side of the image
      CropCommand command = new CropCommand();
      command.Rectangle = new LeadRect(
         100,
         100,
         image.Width - 100,
         image.Height - 100);
      command.Run(image);

      // Save it to disk
      codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24);

      // Clean Up
      image.Dispose();
   }

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

RasterCommandExamples.prototype.CropCommandExample = function () {
    Tools.SetLicense();
    with (Leadtools) {
        with (Leadtools.Codecs) {
            with (Leadtools.ImageProcessing) {
                var codecs = new RasterCodecs();

                var srcFileName = "Assets\\Image1.cmp";
                var destFileName = "CropCommand.bmp";
                var image;
                // Load the source image from disk
                return Tools.AppInstallFolder().getFileAsync(srcFileName).then(function (loadFile) {
                    return codecs.loadAsync(LeadStreamFactory.create(loadFile))
                })
                .then(function (img) {
                    image = img;

                    // Crop 100 pixels from each side of the image
                    var command = new CropCommand();
                    command.rectangle = LeadRectHelper.create(
                       100,
                       100,
                       image.width - 100,
                       image.height - 100);
                    command.run(image);

                    // Save it to disk
                    return Tools.AppLocalFolder().createFileAsync(destFileName)
                })
                .then(function (saveFile) {
                    return codecs.saveAsync(image, LeadStreamFactory.create(saveFile), RasterImageFormat.bmp, 24)
                })
                .then(function () {

                    // Clean Up
                    image.close();
                });
            }
        }
    }
}

[TestMethod]
public async Task CropCommandExample()
{
   RasterCodecs codecs = new RasterCodecs();
   string srcFileName = @"Assets\Image1.cmp";
   string destFileName = @"CropCommand.bmp";

   // Load the source image from disk
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Crop 100 pixels from each side of the image
   CropCommand command = new CropCommand();
   command.Rectangle = LeadRectHelper.Create(
      100,
      100,
      image.Width - 100,
      image.Height - 100);
   command.Run(image);

   // Save it to disk
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 24);

   // Clean Up
   image.Dispose();
}

public void CropCommandExample(RasterImage image, Stream destStream)
{
   RasterCodecs codecs = new RasterCodecs();
   // Crop 100 pixels from each side of the image
   CropCommand command = new CropCommand();
   command.Rectangle = new LeadRect(
      100,
      100,
      image.Width - 100,
      image.Height - 100);
   command.Run(image);

   // Save it to disk
   codecs.Save(image, destStream, RasterImageFormat.Bmp, 24);

   // Clean Up
   image.Dispose();
}

Public Sub CropCommandExample(ByVal image As RasterImage, ByVal destStream As Stream)
   Dim codecs As RasterCodecs = New RasterCodecs()
   ' Crop 100 pixels from each side of the image
   Dim command As CropCommand = New CropCommand()
   command.Rectangle = New LeadRect(100, 100, image.Width - 100, image.Height - 100)
   command.Run(image)

   ' Save it to disk
   codecs.Save(image, destStream, RasterImageFormat.Bmp, 24)

   ' Clean Up
   image.Dispose()
End Sub

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

CropCommand Members
Leadtools.ImageProcessing Namespace