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IWMSBufferAllocator::AllocatePageSizeBuffer method (wmsbuffer.h)

[The feature associated with this page, Windows Media Format 11 SDK, is a legacy feature. It has been superseded by Source Reader and Sink Writer. Source Reader and Sink Writer have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Source Reader and Sink Writer instead of Windows Media Format 11 SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The AllocatePageSizeBuffer method initializes a buffer that can be used to perform page-aligned reads.

Syntax

HRESULT AllocatePageSizeBuffer(
  [in]  DWORD      dwMaxBufferSize,
  [out] INSSBuffer **ppBuffer
);

Parameters

[in] dwMaxBufferSize

DWORD containing the size of the buffer in bytes.

[out] ppBuffer

Address of a variable that receives a pointer to the INSSBuffer interface.

Return value

If the method succeeds, it returns S_OK. If it fails, it returns an HRESULT error code.

Requirements

Requirement Value
Minimum supported client Windows Media Format 9 Series SDK, or later versions of the SDK
Target Platform Windows
Header wmsbuffer.h

See also

IWMSBufferAllocator Interface