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CMediaSample.SetPointer method

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[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The SetPointer method sets the pointer to the memory buffer.

Syntax

HRESULT SetPointer(
   BYTE *ptr,
   LONG cBytes
);

Parameters

ptr

Pointer to a memory buffer allocated by the caller, of size cBytes.

cBytes

Length of the buffer, in bytes.

Return value

Returns S_OK.

Remarks

This method enables the allocator to set a new pointer for the sample.

This method is not available through the IMediaSample interface. The object that creates the sample can access this method (through CMediaSample), but other objects cannot.

Requirements

Requirement Value
Header
Amfilter.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CMediaSample Class