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The Writer object is used to write Windows Media files. The Writer object can write video in MPEG version 3 format.
The Writer object supports the following interfaces.
| Interface | Description |
| IWMWriter | Used to start and stop writing of Windows Media files; includes methods for allocating buffers, setting and retrieving input properties, setting profiles and output file names, and unlocking the writer. |
| IWMWriterAdvanced | Used to add, get, and remove specified sink objects; retrieve statistics, number of sinks and the clock time the writer is working to; and perform other advanced functions. |
| IWMWriterFileSink | Used to open a file to which the writer can write data. |
| IWMWriterNetworkSink | Used to open and close ports, set and retrieve the maximum number of clients that can connect to the sink, set the network protocol to be used by the writer, and perform other advanced functions. |
| IWMWriterSink | Used to allocate memory, determine whether the sink is operating in real time, and handle several callback functions. |
See Also
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