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ImageDrawing.Rect Property

Gets or sets the region in which the image is drawn.

Namespace:  System.Windows.Media
Assembly:  PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

'Declaration
Public Property Rect As Rect
<object>
  <object.Rect>
    <Rect .../>
  </object.Rect>
</object>
<object Rect="Rect" .../>

Property Value

Type: System.Windows.Rect
The region in which the image is drawn. The default is Empty.

This example shows how to use an ImageDrawing to draw an image. An ImageDrawing enables you display an ImageSource with a DrawingBrush, DrawingImage, or Visual. To draw an image, you create an ImageDrawing and set its ImageDrawing.ImageSource and ImageDrawing.Rect properties. The ImageDrawing.ImageSource property specifies the image to draw, and the ImageDrawing.Rect property specifies the position and size of each image.

The following example creates a composite drawing using four ImageDrawing objects. This example produces the following image:

Four ImageDrawing objects

Several DrawingImage objects
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Media.Imaging;

namespace SDKSample
{
    public class ImageDrawingExample : Page
    {
        public ImageDrawingExample()
        {
            // Create a DrawingGroup to combine the ImageDrawing objects.
            DrawingGroup imageDrawings = new DrawingGroup();

            // Create a 100 by 100 image with an upper-left point of (75,75). 
            ImageDrawing bigKiwi = new ImageDrawing();
            bigKiwi.Rect = new Rect(75, 75, 100, 100);
            bigKiwi.ImageSource = new BitmapImage(
                new Uri(@"sampleImages\kiwi.png", UriKind.Relative));

            imageDrawings.Children.Add(bigKiwi);

            // Create a 25 by 25 image with an upper-left point of (0,150). 
            ImageDrawing smallKiwi1 = new ImageDrawing();
            smallKiwi1.Rect = new Rect(0, 150, 25, 25);
            smallKiwi1.ImageSource = new BitmapImage(new Uri(@"sampleImages\kiwi.png", UriKind.Relative));
            imageDrawings.Children.Add(smallKiwi1);

            // Create a 25 by 25 image with an upper-left point of (150,0). 
            ImageDrawing smallKiwi2 = new ImageDrawing();
            smallKiwi2.Rect = new Rect(150, 0, 25, 25);
            smallKiwi2.ImageSource = new BitmapImage(new Uri(@"sampleImages\kiwi.png", UriKind.Relative));
            imageDrawings.Children.Add(smallKiwi2);

            // Create a 75 by 75 image with an upper-left point of (0,0). 
            ImageDrawing wholeKiwi = new ImageDrawing();
            wholeKiwi.Rect = new Rect(0, 0, 75, 75);
            wholeKiwi.ImageSource = new BitmapImage(new Uri(@"sampleImages\wholekiwi.png", UriKind.Relative));
            imageDrawings.Children.Add(wholeKiwi);

            // 
            // Use a DrawingImage and an Image control to 
            // display the drawings. 
            //
            DrawingImage drawingImageSource = new DrawingImage(imageDrawings);

            // Freeze the DrawingImage for performance benefits.
            drawingImageSource.Freeze();

            Image imageControl = new Image();
            imageControl.Stretch = Stretch.None;
            imageControl.Source = drawingImageSource;

            // Create a border to contain the Image control.
            Border imageBorder = new Border();
            imageBorder.BorderBrush = Brushes.Gray;
            imageBorder.BorderThickness = new Thickness(1);
            imageBorder.HorizontalAlignment = HorizontalAlignment.Left;
            imageBorder.VerticalAlignment = VerticalAlignment.Top;
            imageBorder.Margin = new Thickness(20);
            imageBorder.Child = imageControl;

            this.Background = Brushes.White;
            this.Margin = new Thickness(20);
            this.Content = imageBorder;
        }

    }
}
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
  xmlns:PresentationOptions="http://schemas.microsoft.com/winfx/2006/xaml/presentation/options" 
  xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
  mc:Ignorable="PresentationOptions"
  Background="White" Margin="20">
  <Border BorderBrush="Gray" BorderThickness="1" 
    HorizontalAlignment="Left" VerticalAlignment="Top"
    Margin="20">
    <Image Stretch="None">
      <Image.Source>
        <DrawingImage PresentationOptions:Freeze="True">
          <DrawingImage.Drawing>
            <DrawingGroup>

              <!-- The Rect property specifies that the image only fill a 100 by 100
                   rectangular area. -->
              <ImageDrawing Rect="75,75,100,100" ImageSource="sampleImages\kiwi.png"/>

              <!-- This image is set to fill a 25 by 25 rectangular area. -->
              <ImageDrawing Rect="0,150,25,25" ImageSource="sampleImages\kiwi.png"/>

              <!-- This image is set to fill a 25 by 25 rectangular area. -->
              <ImageDrawing Rect="150,0,25,25" ImageSource="sampleImages\kiwi.png"/>

              <!-- This image is set to fill a 75 by 75 rectangular area. -->
              <ImageDrawing Rect="0,0,75,75" ImageSource="sampleImages\wholekiwi.png"/>

            </DrawingGroup>
          </DrawingImage.Drawing>
        </DrawingImage>
      </Image.Source>
    </Image>
  </Border>
</Page>

For an example showing a simple way to display an image without using ImageDrawing, see How to: Use the Image Element.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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