CBaseFilter::CBaseFilter
Microsoft DirectShow 9.0 |
CBaseFilter::CBaseFilter
Constructor method.
Syntax
CBaseFilter( const TCHAR *pName, LPUNKNOWN pUnk, CCritSec *pLock, REFCLSID clsid ); CBaseFilter( const TCHAR *pName, LPUNKNOWN pUnk, CCritSec *pLock, REFCLSID clsid, HRESULT *phr );
Parameters
pName
Pointer to a string containing the name of the filter, for debugging purposes.
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.
pLock
Pointer to a CCritSec lock, used to serialize state changes.
clsid
Class identifier (CLSID) of the filter.
phr
Pointer to an HRESULT value. The constructor ignores this parameter.
Remarks
For the critical section object, you would typically do one of the following:
- Derive a class that inherits both CBaseFilter and CCritSec. For pLock, pass the
this
pointer. - Derive a class that inherits CBaseFilter and contains a CCritSec member variable. For pLock, pass the address of that variable.
Requirements
** Header:** Declared in Amfilter.h; include Streams.h.
** Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).
See Also