The PROPSETID_VIDCAP_EXTENSION_UNIT property set is new for use with the USB Video Class Driver.

This property set is supported for devices that implement a vendor-specific extension unit. Vendor-supplied property pages and applications access this property set through the generic IKsControl COM interface.

The KSPROPERTY_EXTENSION_UNIT enumeration in ksmedia.h specifies the properties of this set.

Support for this property set is optional and should be implemented only by devices that provide vendor-defined hardware controls.

Clients of the USB video class driver can make the following requests of filters or nodes:


DirectShow Interfaces

Use the following user-mode interfaces to access the properties of this set: IKsTopologyInfo, ISelector, and IKsNodeControl. See the DirectShow documentation in the Microsoft Windows SDK for information about these interfaces.



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