CompositionTarget Class
Represents the display surface of your application.
System.Windows.Threading.DispatcherObject
System.Windows.Media.CompositionTarget
System.Windows.Interop.HwndTarget
System.Windows.Media.VisualTarget
Namespace: System.Windows.Media
Assembly: PresentationCore (in PresentationCore.dll)
The CompositionTarget type exposes the following members.
| Name | Description | |
|---|---|---|
 | Dispatcher | Gets the Dispatcher this DispatcherObject is associated with. (Inherited from DispatcherObject.) |
| RootVisual | Gets or sets the root visual of the CompositionTarget. |
| TransformFromDevice | Gets a matrix that can be used to transform coordinates from the rendering destination device to this target. |
| TransformToDevice | Gets a matrix that can be used to transform coordinates from this target to the rendering destination device. |
| Name | Description | |
|---|---|---|
| CheckAccess | Determines whether the calling thread has access to this DispatcherObject. (Inherited from DispatcherObject.) |
| Dispose | Disposes CompositionTarget. |
| Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
| VerifyAccess | Enforces that the calling thread has access to this DispatcherObject. (Inherited from DispatcherObject.) |
CompositionTarget is a class that represents the display surface on which your application is being drawn. The WPF animation engine provides many features for creating frame-based animation. However, there are application scenarios in which you need control over rendering on a per frame basis. The CompositionTarget object provides the ability to create custom animations based on a per-frame callback.
| Note |
|---|
For a complete code sample using CompositionTarget, see Using the CompositionTarget Sample. |
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
