IMixerOCXNotify interface (mixerocx.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The IMixerOCXNotify interface is implemented by clients and called by the Overlay Mixer to send notifications of events affecting the video display rectangle.
Inheritance
The IMixerOCXNotify interface inherits from the IUnknown interface. IMixerOCXNotify also has these types of members:
Methods
The IMixerOCXNotify interface has these methods.
| IMixerOCXNotify::OnDataChange The OnDataChange method notifies the client when the video rectangle's aspect ratio or size, or the display palette, has changed. |
| IMixerOCXNotify::OnInvalidateRect The OnInvalidateRect method notifies the client that the video rectangle has been invalidated. |
| IMixerOCXNotify::OnStatusChange The OnStatusChange method informs the client that a status change has occurred. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | mixerocx.h |