OverlaySurface Class
Allows applications to access a drawing (overlay) surface above the video surface. ARGB bitmaps can be rendered into this drawing surface. Both surfaces are composited together to show an alpha-blended bitmap over video.
public class OverlaySurface : Microsoft.MediaCenter.UI.IPropertyObject
Members
Public Instance Methods
| Method | Description |
| Allocate | Allocates the memory for the bitmap on the drawing surface. |
| BeginRegionUpdates | Starts a logical grouping of region updates. |
| EndRegionUpdates | Ends the sequence of region updates on the overlay surface. |
| Free | Frees the memory associated with the drawing overlay surface. |
| UpdateRegion | Updates a region on the overlay surface. |
Public Instance Properties
| Property | Description |
| AnimationLevel | Gets a value that indicates the recommended animation level for the overlay surface. |
| RenderingMode | Gets an object that describes the current rendering mode and coordinate system in which the application runs. |
| Visible | Gets or sets a value indicating whether to enable or disable rendering of the overlay surface. |
Public Instance Events
| Event | Description |
| PropertyChanged Event | Fires when the RenderingMode property changes. |
Requirements
Reference: Microsoft.MediaCenter.ITVVM
Namespace: Microsoft.MediaCenter.TVVM
Assembly: Microsoft.MediaCenter.ITVVM.dll
Platform: Windows 7
See Also