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IWMWriterPostView interface

The IWMWriterPostView interface manages advanced writing functionality related to the postviewing of samples. Postviewing displays the media samples as a viewer of the ASF file would see them, and is often used after encoding to check the output. Postviewing is supported only for video.

This interface can be obtained from any interface on the writer object by calling QueryInterface.

Members

The IWMWriterPostView interface inherits from the IUnknown interface. IWMWriterPostView also has these types of members:

Methods

The IWMWriterPostView interface has these methods.

MethodDescription
GetAllocateForPostView

Ascertains whether the application, and not the writer, must supply the buffers.

GetPostViewFormat

Retrieves the media properties for the specified output stream and output format.

GetPostViewFormatCount

Retrieves the number of possible output formats.

GetPostViewProps

Retrieves the properties for the specified output stream.

GetReceivePostViewSamples

Ascertains whether delivery of postview samples is enabled for the specified stream.

SetAllocateForPostView

Specifies whether the application, and not the writer, must supply the buffers.

SetPostViewCallback

Specifies the callback interface to use for receiving postview samples.

SetPostViewProps

Specifies the properties for the output stream.

SetReceivePostViewSamples

Enables or disables delivery of postview samples for the specified stream.

 

For information about which interfaces can be obtained by using the QueryInterface method of this interface, see Writer Object.

See also

Interfaces
IWMWriterPostViewCallback Interface
To Use Writer Postview
Writer Object