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Use Render Target Bitmap

<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.vb Imports System Imports System.Collections.Generic Imports System.Text Imports System.Windows Imports System.Windows.Controls Imports System.Windows.Data Imports System.Windows.Documents Imports System.Windows.Input Imports System.Windows.Media Imports System.Windows.Media.Imaging Imports System.Windows.Shapes Namespace BitmapProgramming   Public Partial Class UseRenderTargetBitmap     Inherits System.Windows.Window     Public Sub New()       InitializeComponent()       ' Dimensions in physical pixels       ' Pixel resolution (dpi)       Dim bmp As New RenderTargetBitmap(300, 150, 300, 300, PixelFormats.Pbgra32)       Dim e As 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     End Sub   End Class End Namespace