DSP Plug-in Interfaces
[The feature associated with this page, Windows Media Player SDK, is a legacy feature. It has been superseded by MediaPlayer. MediaPlayer has been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer instead of Windows Media Player SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The digital signal processing (DSP) plug-in interfaces are used to manage data transfer between Windows Media Player and the plug-in. All DSP plug-ins may optionally implement the ISpecifyPropertyPage interface to provide a property page implementation.
The following interfaces are required for creating DSP plug-ins.
| Interface | Description |
|---|---|
| IMediaObject | Manages data exchange with Windows Media Player and performs digital signal processing tasks. Detailed documentation is included with the DirectX SDK. |
| IWMPMediaPluginRegistrar | Manages plug-in registration. |
| IWMPPlugin | Manages the connection to Windows Media Player. |
| IWMPPluginEnable | Stores whether the plug-in is currently enabled by Windows Media Player. |
| IWMPServices | Retrieves information from the Player about the current stream time and stream state. |
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