| Microsoft DirectX 9.0 |
The IMixerOCXNotify interface is implemented by clients and called by the Overlay Mixer to send notifications of events affecting the video display rectangle.
In addition to the methods inherited from IUnknown, the IMixerOCXNotify interface exposes the following methods.
| Methods | Description |
| OnDataChange | Notifies the client when the video rectangle's aspect ratio or size, or the display palette, has changed. |
| OnInvalidateRect | Notifies the client that the video rectangle has been invalidated. |
| OnStatusChange | Notifies the client that a status change has occurred. |
See Also