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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | mediaobj.h (include Dmo.h) |
| Library | Dmoguids.lib |