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CSourceSeeking.CSourceSeeking constructor

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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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

Constructor method.

Syntax

CSourceSeeking(
   const TCHAR     *pName,
         LPUNKNOWN pUnk,
         HRESULT   *phr,
         CCritSec  *pLock
);

Parameters

pName

Pointer to a string containing the name of the object. For more information, see CBaseObject.

pUnk

Pointer to the owner of this object. If the object is aggregated, pass a pointer to the aggregating object's IUnknown interface. Otherwise, set this parameter to NULL.

phr

Pointer to an HRESULT value. Ignored.

pLock

Pointer to a CCritSec object. In your derived class, declare a CCritSec member variable and use the address of it for this parameter. The CSourceSeeking class uses this critical section to synchronize access to the start and stop times, duration, and playback rate. Whenever you access those variables in your derived class, hold this lock.

Requirements

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

See also

CSourceSeeking Class