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include: hush-src-multi-DLL-UILayer.h /home/ae/media

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//------------------------------------------------------------------------------
// File: UILayer.h
//
// Desc: DirectShow sample code - Declaration of the CMultiVMR9UILayer
//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//------------------------------------------------------------------------------

#pragma once
include <resource.h>       // main symbols

include <MultiVMR9.h>

// CMultiVMR9UILayer
<h4 align=right text=red> CMultiVMR9UILayer</h4><hr>
  class CMultiVMR9UILayer : 
    public CUnknown,
    public IMultiVMR9UILayer
{
public:
    CMultiVMR9UILayer(LPUNKNOWN pUnk, HRESULT *phr);
    virtual ~CMultiVMR9UILayer();

    // IUnknown implementation
    DECLARE_IUNKNOWN
    STDMETHODIMP NonDelegatingQueryInterface(REFIID, void**);
    static CUnknown *CreateInstance(LPUNKNOWN, HRESULT *);

    // IMultiVMR9UILayer implementation
    STDMETHOD(Initialize)(IDirect3DDevice9 *pDevice);
    STDMETHOD(ProcessMessage)(UINT msg, UINT wParam, LONG lParam);
    STDMETHOD(Render)(IDirect3DDevice9 *pDevice);
    STDMETHOD(SetRenderEngineOwner)(IMultiVMR9RenderEngine* pRenderEngine);
    STDMETHOD(GetRenderEngineOwner)(IMultiVMR9RenderEngine** ppRenderEngine);
        STDMETHOD(BeginDeviceLoss)(void);
        STDMETHOD(EndDeviceLoss)( IDirect3DDevice9* pDevice );
};
<hr> 


// class factory
extern long g_CountUILayer;
<hr>

CCFMultiVMR9UILayer</h4>
  class CCFMultiVMR9UILayer : public IClassFactory
  {
  public:
      // Constructor
      CCFMultiVMR9UILayer() : m_RefCount(1) {} 
  
      // IUnknown methods
      STDMETHOD(QueryInterface)(REFIID riid, void ** ppv)
      {
          if (IID_IUnknown == riid)
              *ppv = static_cast<IUnknown *>(this);
          else if (IID_IClassFactory == riid)
              *ppv = static_cast<IClassFactory *>(this);
          else
          {
              *ppv = NULL;
              return E_NOINTERFACE;
          }
          static_cast<IUnknown *>(*ppv)->AddRef();
          return S_OK;
      }
  
      STDMETHOD_(ULONG, AddRef())
      {
          return InterlockedIncrement(&m_RefCount);
      }
  
      STDMETHOD_(ULONG, Release())
      {
          LONG ref = InterlockedDecrement(&m_RefCount);
          if (0 == ref)
          {
              delete this;
          }
          return ref;
      }
  
      // IClassFactory methods
      STDMETHOD(CreateInstance)(IUnknown * punkOuter, REFIID riid, void ** ppvObject)
      {
          HRESULT hr = S_OK;
          if (NULL == ppvObject)
              return E_POINTER;
  
          *ppvObject = NULL; // initialize the pointer
          // we don't support aggregation
          if (NULL != punkOuter)
              return CLASS_E_NOAGGREGATION;
  
          // create a new Wizard object
          CMultiVMR9UILayer * pUILayer = new CMultiVMR9UILayer(punkOuter, &hr);
          if (NULL == pUILayer)
              return E_OUTOFMEMORY;
  
          // now QI for the requested interface.  If this fails, delete the object
          hr = pUILayer->QueryInterface(riid, ppvObject);
          if (FAILED(hr))
              delete pUILayer;
  
          return hr;
      }
  
      STDMETHOD(LockServer)(BOOL fLock)
      {
          if (fLock)
              InterlockedIncrement(&g_CountUILayer);
          else
              InterlockedDecrement(&g_CountUILayer);
          return S_OK;
      }
  
  private:
      LONG m_RefCount;
  };
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(C) Æliens 20/2/2008

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03/12/09