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dotnet-desktop-guide/framework/wpf/controls/how-to-crop-an-image.md

@@ -0,0 +1,38 @@
+---
+title: "How to: Crop an Image"
+ms.date: "03/30/2017"
+dev_langs: 
+  - "csharp"
+  - "vb"
+helpviewer_keywords: 
+  - "images [WPF], cropping"
+  - "cropping images [WPF]"
+ms.assetid: c6bba109-c6e7-4cf8-bfe6-9cf8d01bb4fc
+---
+# How to: Crop an Image
+This example shows how to crop an image using <xref:System.Windows.Media.Imaging.CroppedBitmap>.  
+  
+ <xref:System.Windows.Media.Imaging.CroppedBitmap> is primarily used when encoding a cropped version of an image to save out to a file. To crop an image for display purposes see the [How to: Create a Clip Region](https://docs.microsoft.com/previous-versions/dotnet/netframework-3.5/ms746710(v=vs.90)) topic.  
+  
+## Example  
+ The following [!INCLUDE[TLA#tla_xaml](../../../includes/tlasharptla-xaml-md.md)] defines resources used within the samples below.  
+  
+ [!code-xaml[imageelementexample#CroppedXAML1](~/samples/snippets/csharp/VS_Snippets_Wpf/ImageElementExample/CSharp/CroppedImageExample.xaml#croppedxaml1)]  
+  
+ The following example creates an image using a <xref:System.Windows.Media.Imaging.CroppedBitmap> as its source.  
+  
+ [!code-xaml[imageelementexample#CroppedXAML2](~/samples/snippets/csharp/VS_Snippets_Wpf/ImageElementExample/CSharp/CroppedImageExample.xaml#croppedxaml2)]  
+  
+ [!code-csharp[imageelementexample#CroppedCSharp1](~/samples/snippets/csharp/VS_Snippets_Wpf/ImageElementExample/CSharp/CroppedImageExample.xaml.cs#croppedcsharp1)]
+ [!code-vb[imageelementexample#CroppedCSharp1](~/samples/snippets/visualbasic/VS_Snippets_Wpf/ImageElementExample/VB/CroppedImageExample.xaml.vb#croppedcsharp1)]  
+  
+ The <xref:System.Windows.Media.Imaging.CroppedBitmap> can also be used as the source of another <xref:System.Windows.Media.Imaging.CroppedBitmap>, chaining the cropping. Note that the <xref:System.Windows.Media.Imaging.CroppedBitmap.SourceRect%2A> uses values that are relative to the source cropped bitmap and not the initial image.  
+  
+ [!code-xaml[imageelementexample#CroppedXAML3](~/samples/snippets/csharp/VS_Snippets_Wpf/ImageElementExample/CSharp/CroppedImageExample.xaml#croppedxaml3)]  
+  
+ [!code-csharp[imageelementexample#CroppedCSharp2](~/samples/snippets/csharp/VS_Snippets_Wpf/ImageElementExample/CSharp/CroppedImageExample.xaml.cs#croppedcsharp2)]
+ [!code-vb[imageelementexample#CroppedCSharp2](~/samples/snippets/visualbasic/VS_Snippets_Wpf/ImageElementExample/VB/CroppedImageExample.xaml.vb#croppedcsharp2)]  
+  
+## See also
+
+- [How to: Create a Clip Region](https://docs.microsoft.com/previous-versions/dotnet/netframework-3.5/ms746710(v=vs.90))