Specifies initialization options for bitmap images.
This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.Namespace: System.Windows.Media.Imaging
Assembly: PresentationCore (in PresentationCore.dll)
|No are specified. This is the default value.|
|Ensures that the PixelFormat a file is stored in is the same as it is loaded to.|
|Causes a BitmapSource object to delay initialization until it is necessary. This is useful when dealing with collections of images.|
|Causes a BitmapSource to ignore an embedded color profile.|
|Loads images without using an existing image cache. This option should only be selected when images in a cache need to be refreshed.|
If is not selected, the PixelFormat of the image is chosen by the system depending on what the system determines will yield the best performance. Enabling this option preserves the file format but may result in lesser performance.
If is set to , calls to methods such as CopyPixels(Array, Int32, Int32) will not return color-corrected bits.
When is selected, any existing entries in the image cache are replaced even if they share the same Uri.
The following code example demonstrates how to instantiate a BitmapImage and specify .
' Define a BitmapImage. Dim myImage As New Image() Dim bi As New BitmapImage() ' Begin initialization. bi.BeginInit() ' Set properties. bi.CacheOption = BitmapCacheOption.OnDemand bi.CreateOptions = BitmapCreateOptions.DelayCreation bi.DecodePixelHeight = 125 bi.DecodePixelWidth = 125 bi.Rotation = Rotation.Rotate90 MessageBox.Show(bi.IsDownloading.ToString()) bi.UriSource = New Uri("smiley.png", UriKind.Relative) ' End initialization. bi.EndInit() myImage.Source = bi myImage.Stretch = Stretch.None myImage.Margin = New Thickness(5)
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.