WmpBitmapEncoder Class
Assembly: PresentationCore (in presentationcore.dll)
XML Namespace: http://schemas.microsoft.com/winfx/2006/xaml/presentation
Windows Media Photo is a new codec that provides better image fidelity than JPEG with smaller file sizes and more features. Windows Media Photo images achieve lossy and lossless compression by using a single algorithm. Windows Media Photo images support existing metadata standards. For additional information about this format, see the Windows Media Photo Specification.
files do not support preview, global thumbnails, frame level thumbnails, or multiple frames.
Encoding does not work in partial trust. See the Windows Presentation Foundation Partial Trust Programming topic for information on partial trust.
The following example demonstrates how to use the WmpBitmapEncoder to encode a new bitmap image.
Dim width As Integer = 128 Dim height As Integer = width Dim stride As Integer = CType(width / 8, Integer) Dim pixels(height * stride) As Byte ' Define the image palette Dim myPalette As BitmapPalette = BitmapPalettes.WebPalette ' Creates a new empty image with the pre-defined palette Dim image As BitmapSource = System.Windows.Media.Imaging.BitmapSource.Create( _ width, height, 96, 96, PixelFormats.Indexed1, myPalette, pixels, stride) Dim stream As New FileStream("new.wdp", FileMode.Create) Dim encoder As New WmpBitmapEncoder() Dim myTextBlock As New TextBlock() myTextBlock.Text = "Codec Author is: " + encoder.CodecInfo.Author.ToString() encoder.Frames.Add(BitmapFrame.Create(image)) encoder.Save(stream)
System.Windows.Threading.DispatcherObject
System.Windows.Media.Imaging.BitmapEncoder
System.Windows.Media.Imaging.WmpBitmapEncoder
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.