CVIDEO.H

//**************************************************************************** 
//  Module:     NMUI.EXE      
//  File:       CVIDEO.H 
//  Content:     
//               
// 
//  Copyright (c) Microsoft Corporation 1995-1997 
// 
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF  
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO  
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A  
// PARTICULAR PURPOSE. 
//**************************************************************************** 
 
 
typedef VOID (* PFNSTATECHANGE)(NM_VIDEO_STATE, DWORD); 
typedef VOID (* PFNPROPERTYCHANGE)(DWORD, DWORD); 
 
class CVideoNotify : public RefCount, public CNotify, public INmChannelVideoNotify 
{ 
private: 
    PFNSTATECHANGE m_pfnStateChange; 
    PFNPROPERTYCHANGE m_pfnPropertyChange; 
    DWORD m_dwParam; 
 
public: 
CVideoNotify(PFNSTATECHANGE pfnStateChange, PFNPROPERTYCHANGE pfnPropertyChange, DWORD dwParam); 
~CVideoNotify(); 
 
// INmChannelVideoNotify 
HRESULT STDMETHODCALLTYPE NmUI(CONFN uNotify); 
HRESULT STDMETHODCALLTYPE MemberChanged(NM_MEMBER_NOTIFY uNotify, INmMember * pMember); 
    HRESULT STDMETHODCALLTYPE StateChanged(NM_VIDEO_STATE uState); 
    HRESULT STDMETHODCALLTYPE PropertyChanged(DWORD dwReserved); 
 
// ICNotify methods 
HRESULT STDMETHODCALLTYPE Connect (IUnknown *pUnk); 
HRESULT STDMETHODCALLTYPE Disconnect(void); 
 
// IUnknown methods 
ULONG STDMETHODCALLTYPE AddRef(void); 
ULONG STDMETHODCALLTYPE Release(void); 
HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, PVOID *ppvObj); 
}; 
 
// Global Routines 
HRESULT HookVideo(INmChannel * pChannel, CVideoNotify * pNotify); 
VOID UnhookVideo(CVideoNotify * pNotify);