IMediaBuffer::GetMaxLength method (mediaobj.h)

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 GetMaxLength method retrieves the maximum number of bytes this buffer can hold.

Syntax

HRESULT GetMaxLength(
  [out] DWORD *pcbMaxLength
);

Parameters

[out] pcbMaxLength

Pointer to a variable that receives the buffer's maximum size, in bytes.

Return value

Returns S_OK if successful. Otherwise, returns an HRESULT value indicating the cause of the error.

Requirements

See also

IMediaBuffer Interface

Implementing IMediaBuffer