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73 lines
3 KiB
Text
73 lines
3 KiB
Text
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// Copyright (c) 1998 Microsoft Corporation. All Rights Reserved.
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import "unknwn.idl";
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// data id flags, used to notify the client whenever pertinent data changes
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#define MIXER_DATA_ASPECT_RATIO 0x00000001 // picture aspect ratio changed
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#define MIXER_DATA_NATIVE_SIZE 0x00000002 // native size of video changed
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#define MIXER_DATA_PALETTE 0x00000004 // palette of video changed
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// status flags defined here
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#define MIXER_STATE_MASK 0x00000003 // use this mask with state status bits
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#define MIXER_STATE_UNCONNECTED 0x00000000 // mixer is unconnected and stopped
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#define MIXER_STATE_CONNECTED_STOPPED 0x00000001 // mixer is connected and stopped
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#define MIXER_STATE_CONNECTED_PAUSED 0x00000002 // mixer is connected and paused
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#define MIXER_STATE_CONNECTED_PLAYING 0x00000003 // mixer is connected and playing
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interface IMixerOCXNotify;
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interface IMixerOCX;
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[
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object,
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uuid(81A3BD31-DEE1-11d1-8508-00A0C91F9CA0),
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helpstring("IMixerOCXNotify Interface"),
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pointer_default(unique)
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]
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interface IMixerOCXNotify : IUnknown
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{
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// invalidates the rect
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HRESULT OnInvalidateRect([in] LPCRECT lpcRect);
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// informs that a status change has occured, new status bits provided in ulStatusFlags
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HRESULT OnStatusChange([in] ULONG ulStatusFlags);
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// informs that data parameters, whose id is present in ilDataFlags has changed
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HRESULT OnDataChange([in] ULONG ulDataFlags);
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};
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[
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object,
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uuid(81A3BD32-DEE1-11d1-8508-00A0C91F9CA0),
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helpstring("IMixerOCX Interface"),
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pointer_default(unique)
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]
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interface IMixerOCX : IUnknown
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{
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// used to notify the mixer that the display mode has changed, the mixer handles this
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// asynchronously and the calls OnStatusChange(MIXER_DISPLAYCHANGE_HANDLED) when processing
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// is done
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HRESULT OnDisplayChange([in] ULONG ulBitsPerPixel, [in] ULONG ulScreenWidth, [in] ULONG ulScreenHeight);
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HRESULT GetAspectRatio([out] LPDWORD pdwPictAspectRatioX, [out] LPDWORD pdwPictAspectRatioY);
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HRESULT GetVideoSize([out] LPDWORD pdwVideoWidth, [out] LPDWORD pdwVideoHeight);
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HRESULT GetStatus([out] LPDWORD *pdwStatus);
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// the dc provided here is not supposed to be cached. If apps have set a dc using
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// SetDrawInfo, then it is illegal to provide a non NULL argument here
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HRESULT OnDraw([in] HDC hdcDraw, [in] LPCRECT prcDraw);
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// lpptTopLeftSC should be NULL unless MIXER_DRAW_DC_ONSCREEN is set to TRUE
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// specifying a NULL value for lprcClip means no clipping
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// lpptTopLeftSC - top left corner of surface/dc in screen coordinates
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// prcDrawCC - draw rectangle in surface/dc coordinates
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// lprcClip - clipping rect in surface/dc coordinates (optional)
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HRESULT SetDrawRegion([in] LPPOINT lpptTopLeftSC, [in] LPCRECT prcDrawCC, [in] LPCRECT lprcClip);
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// function to set the sink interface for client notification
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HRESULT Advise([in] IMixerOCXNotify *pmdns);
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// function to remove the sink interface
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HRESULT UnAdvise();
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};
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