66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
// IVIDRDR.H
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//
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// IVideoRender interface.
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//
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// Used by videoconferencing UI to drive frame viewing.
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//
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// Created 12-Oct-96 [JonT]
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#ifndef _IVIDEORENDER_H
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#define _IVIDEORENDER_H
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#include <pshpack8.h> /* Assume 8 byte packing throughout */
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#define FRAME_RECEIVE 1
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#define FRAME_SEND 2 // Preview frame
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typedef struct _FRAMECONTEXT
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{
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LPBITMAPINFO lpbmi;
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void* lpData;
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DWORD_PTR dwReserved;
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LPRECT lpClipRect;
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} FRAMECONTEXT, *LPFRAMECONTEXT;
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typedef void (CALLBACK *LPFNFRAMEREADY) (DWORD_PTR);
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DECLARE_INTERFACE_(IVideoRender, IUnknown)
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{
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// *** IUnknown methods ***
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STDMETHOD(QueryInterface) (THIS_ REFIID riid,LPVOID FAR* ppvObj) PURE;
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STDMETHOD_(ULONG,AddRef) (THIS) PURE;
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STDMETHOD_(ULONG,Release) (THIS) PURE;
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// IVideoRender methods
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STDMETHOD (Init)(THIS_ DWORD_PTR dwUser, LPFNFRAMEREADY pfCallback) PURE;
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STDMETHOD (Done)(THIS) PURE;
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STDMETHOD (GetFrame)(THIS_ FRAMECONTEXT* pfc) PURE;
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STDMETHOD (ReleaseFrame)(THIS_ FRAMECONTEXT *pfc) PURE;
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};
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#if(0)
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// This is no longer used anywhere
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// outside of NAC.DLL, and is almost obsolete
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//DECLARE_INTERFACE_(IMediaProp, IUnknown)
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DECLARE_INTERFACE_(IVideoRenderOld, IUnknown)
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{
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// *** IUnknown methods ***
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STDMETHOD(QueryInterface) (THIS_ REFIID riid,LPVOID FAR* ppvObj) PURE;
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STDMETHOD_(ULONG,AddRef) (THIS) PURE;
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STDMETHOD_(ULONG,Release) (THIS) PURE;
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STDMETHOD(Init)(THIS_ DWORD dwFlags, HANDLE hEvent) PURE;
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STDMETHOD(Done)(THIS_ DWORD dwFlags) PURE;
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STDMETHOD(GetFrame)(THIS_ DWORD dwFlags, FRAMECONTEXT* pFrameContext) PURE;
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STDMETHOD(ReleaseFrame)(THIS_ DWORD dwFlags, FRAMECONTEXT* pFrameContext) PURE;
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};
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typedef IVideoRenderOld *LPIVideoRender;
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#endif
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#include <poppack.h> /* End byte packing */
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#endif //_IVIDEORENDER_H
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