KsFilterGetOuterUnknown function (ks.h)

Article
02/22/2024

The KsFilterGetOuterUnknown function returns the outer IUnknown interface of the filter specified by Filter.

Syntax

PUNKNOWN KsFilterGetOuterUnknown(
  [in] PKSFILTER Filter
);

Parameters

[in] Filter

A pointer to the KSFILTER structure for which to return the outer IUnknown.

Return value

KsFilterGetOuterUnknown returns a pointer to the outer IUknown interface of Filter. The interface can then be used to query for other interfaces, or it can be used in conjunction with a KsXxxRegisterAggregatedClientUnknown call to cause Filter to aggregate a minidriver supplied COM object.

Remarks

This call is an inline function call to KsGetOuterUnknown.

Requirements

Requirement	Value
Minimum supported client	Available in Microsoft Windows XP and later operating systems and DirectX 8.0 and later DirectX versions.
Target Platform	Desktop
Header	ks.h (include Ks.h)
IRQL	PASSIVE_LEVEL