Defines a decoder that requires delayed bitmap creation such as asynchronous image downloads.
Assembly: PresentationCore (in PresentationCore.dll)
A can also be created when the system has an image that is being asynchronously downloaded locally. In this case, the decoder also returns null for properties until the image has been downloaded. The application can check the IsDownloading property or add a delegate for the DownloadCompleted event to monitor the download status. Furthermore, any frames obtained from a while the image is downloading will return a width/height of 1,1 until the frames have finished downloading.
BitmapFrame objects that are returned by this class are frozen and are therefore immutable.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.