<Window x:Class="BitmapProgramming.UseRenderTargetBitmap" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="BitmapProgramming" Height="300" Width="300"> <Image x:Name="imageElement" /> </Window> //File:Window.xaml.cs using System; using System.Collections.Generic; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Shapes; namespace BitmapProgramming { public partial class UseRenderTargetBitmap : System.Windows.Window { public UseRenderTargetBitmap() { InitializeComponent(); RenderTargetBitmap bmp = new RenderTargetBitmap( 300, 150, // Dimensions in physical pixels 300, 300, // Pixel resolution (dpi) PixelFormats.Pbgra32); Ellipse e = new Ellipse(); e.Fill = Brushes.Red; e.Measure(new Size(96, 48)); e.Arrange(new Rect(0, 0, 96, 48)); bmp.Render(e); imageElement.Source = bmp; } } }