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IWMWatermarkInfo interface

The IWMWatermarkInfo interface retrieves information about available watermarking systems. Watermarking systems are implemented in DirectX Media Objects that are registered for use with the Windows Media Formats SDK.

An IWMWatermarkInfo interface exists for every writer object. To obtain a pointer to this interface, call QueryInterface on any other interface of the writer object.


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


The IWMWatermarkInfo interface has these methods.


Retrieves information about one available watermarking system.


Retrieves the total number of watermarking systems available.


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

See also

Watermarking Support