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CBaseAllocator::m_bChanged member

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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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

Flag indicating whether the buffer requirements have changed. The CBaseAllocator::SetProperties method sets the value to TRUE. In a derived class, the pure virtual method CBaseAllocator::Alloc should set the value back to FALSE. Once buffers have been allocated, there is no need to re-allocate them while m_bChanged is FALSE.

Syntax

BOOL m_bChanged;

Requirements

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

See also

CBaseAllocator Class