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KsStreamPointerGetMdl function

The KsStreamPointerGetMdl function returns the MDL associated with the frame referenced by StreamPointer.

Syntax


PMDL KsStreamPointerGetMdl(
  _In_  PKSSTREAM_POINTER StreamPointer
);

Parameters

StreamPointer [in]

A pointer to the KSSTREAM_POINTER structure that references the frame for which to return the associated MDL.

Return value

Returns either a pointer to the memory descriptor list (MDL) describing the frame referenced by StreamPointer or returns NULL. A NULL return value usually indicates that the given stream pointer was not locked at call-time.

Remarks

The stream pointer must be locked in order for KsStreamPointerGetMdl to execute successfully.

Also see Stream Pointers.

Requirements

Version

Available in Microsoft Windows XP and later operating systems and DirectX 8.0 and later DirectX versions.

Header

Ks.h (include Ks.h)

Library

Ks.lib

IRQL

<=DISPATCH_LEVEL

See also

KsStreamPointerGetIrp
KsStreamPointerLock

 

 

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