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bearsoft |
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//------------------------------------------------------------------------------
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// File: IAMovie.idl
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//
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// Desc:
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//
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// Copyright (c) 1992 - 2000, Microsoft Corporation. All rights reserved.
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//------------------------------------------------------------------------------
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[
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object,
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uuid(359ace10-7688-11cf-8b23-00805f6cef60),
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pointer_default(unique)
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]
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interface IAMovie : IFilterGraph
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{
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// IGraphBuilder
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// Connect these two pins directly or indirectly, using transform filters
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// if necessary.
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HRESULT Connect
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( [in] IPin * ppinOut, // the output pin
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[in] IPin * ppinIn // the input pin
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);
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// Connect this output pin directly or indirectly, using transform filters
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// if necessary to something that will render it.
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HRESULT Render
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( [in] IPin * ppinOut // the output pin
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);
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// IMediaControl methods
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HRESULT Run();
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HRESULT Pause();
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HRESULT Stop();
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//returns the state. same semantics as IMediaFilter::GetState
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HRESULT GetState(
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[in] LONG msTimeout,
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[out] FILTER_STATE* pfs);
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// adds and connects filters needed to play the specified file
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HRESULT RenderFile(
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[in] LPCWSTR strFilename);
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// adds to the graph the source filter that can read this file,
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// and returns an IFilterInfo object for it
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HRESULT AddSourceFilter(
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[in] LPCWSTR strFilename,
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[out] IBaseFilter ** ppUnk);
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// get back the event handle. This is manual-reset
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// (don't - it's reset by the event mechanism) and remains set
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// when events are queued, and reset when the queue is empty.
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HRESULT GetEventHandle(
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[out] HEVENT * hEvent);
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// remove the next event notification from the head of the queue and
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// return it. Waits up to msTimeout millisecs if there are no events.
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// if a timeout occurs without any events, this method will return
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// E_ABORT, and the value of the event code and other parameters
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// is undefined.
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HRESULT GetEvent(
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[out] long * lEventCode,
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[out] long * lParam1,
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[out] long * lParam2,
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[in] long msTimeout
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);
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// Calls GetEvent repeatedly discarding events until it finds a
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// completion event (EC_COMPLETE, EC_ERRORABORT, or EC_USERABORT).
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// The completion event is removed from the queue and returned
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// in pEvCode. Note that the object is still in running mode until
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// a Pause or Stop call is made.
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// If the timeout occurs, *pEvCode will be 0 and E_ABORT will be
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// returned.
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HRESULT WaitForCompletion(
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[in] long msTimeout,
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[out] long * pEvCode);
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// cancels any system handling of the specified event code
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// and ensures that the events are passed straight to the application
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// (via GetEvent) and not handled. A good example of this is
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// EC_REPAINT: default handling for this ensures the painting of the
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// window and does not get posted to the app.
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HRESULT CancelDefaultHandling(
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[in] long lEvCode);
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// restore the normal system default handling that may have been
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// cancelled by CancelDefaultHandling().
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HRESULT RestoreDefaultHandling( [in] long lEvCode);
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// properties
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HRESULT get_Duration(
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[out] REFTIME* plength);
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HRESULT put_CurrentPosition(
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[in] REFTIME llTime);
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HRESULT get_CurrentPosition(
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[out] REFTIME* pllTime);
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HRESULT get_StopTime(
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[out] REFTIME* pllTime);
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HRESULT put_StopTime(
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[in] REFTIME llTime);
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HRESULT get_PrerollTime(
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[out] REFTIME* pllTime);
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HRESULT put_PrerollTime(
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[in] REFTIME llTime);
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HRESULT put_Rate(
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[in] double dRate);
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HRESULT get_Rate(
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[out] double * pdRate);
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/* New methods */
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HRESULT RemoveAllFilters();
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HRESULT Play();
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HRESULT PlayFile([in] LPCWSTR strFilename);
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HRESULT EnumFiltersByInterface( [in] REFIID riid, [out] IEnumFilters ** ppEnum );
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HRESULT EnumPins( [out] IEnumPins ** ppEnum );
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HRESULT EnumPinsIn( [out] IEnumPins ** ppEnum );
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HRESULT EnumPinsOut( [out] IEnumPins ** ppEnum );
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HRESULT RenderAll();
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HRESULT RenderNewFile( [in] LPCWSTR strFilename);
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// Free any resources associated with the parameters to an event.
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// Event parameters may be LONGs, IUnknown* or BSTR. No action
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// is taken with LONGs. IUnknown are passed addrefed and need a
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// Release call. BSTR are allocated by the task allocator and will be
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// freed by calling the task allocator.
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HRESULT FreeEventParams(
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[in] long lEvCode,
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[in] long lParam1,
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[in] long lParam2);
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}
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Revision Log