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IAMDevMemoryAllocator::CheckMemory method (strmif.h)

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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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]

Note  The IAMDevMemoryAllocator interface is deprecated.
 
Tests whether the specific instance (device) of the allocator allocated a memory pointer.

Syntax

HRESULT CheckMemory(
  [in] const BYTE *pBuffer
);

Parameters

[in] pBuffer

Pointer to the allocated memory buffer's address.

Return value

Returns S_OK if the on-board allocator allocated the memory, or S_FALSE if not. Memory that is on the particular device but not allocated will also return S_FALSE.

Remarks

The hardware filter typically uses this method to test whether the pointer actually points to on-board memory.

Requirements

Requirement Value
Target Platform Windows
Header strmif.h (include Dshow.h)

See also

Error and Success Codes

IAMDevMemoryAllocator Interface