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htmlbm.h
Package: shell.rar　[view]
Upload User: xhy777
Upload Date: 2007-02-14
Package Size: 24088k
Code Size: 1k
Category:

Windows Kernel

Development Platform:

Visual C++

htmlbm.h：Code Content
  2. #ifndef _HTMLBM_H_
  3. #define _HTMLBM_H_
  5. #include "logo.h"
  7. class CThumbnail :
  8.     public IThumbnail,
  9.     public CLogoBase
  10. {
  11. public:
  12.     //////////////////////////////////////////////////////
  13.     // Public Interfaces
  14.     //////////////////////////////////////////////////////
  15.     
  16.     // *** IUnknown ***
  17.     virtual STDMETHODIMP_(ULONG) AddRef(void);
  18.     virtual STDMETHODIMP_(ULONG) Release(void);
  19.     virtual STDMETHODIMP QueryInterface(REFIID riid, LPVOID * ppvObj);
  21.     // *** IThumbnail ***
  22.     virtual STDMETHODIMP Init(HWND hwnd, UINT uMsg);
  23.     virtual STDMETHODIMP GetBitmap(LPCWSTR wszFile, DWORD dwItem, LONG lWidth, LONG lHeight);
  25. private:
  26.     // Constructor / Destructor (protected so we can't create on stack)
  27.     CThumbnail(void);
  28.     ~CThumbnail(void);
  30.     // Instance creator
  31.     friend HRESULT CThumbnail_CreateInstance(IUnknown *punkOuter, IUnknown **ppunk, LPCOBJECTINFO poi);
  33.     // Private variables
  34. protected:
  35.     DWORD m_cRef;      // COM reference count
  36.     HWND _hwnd;
  37.     UINT _uMsg;
  38.     LPSHELLIMAGESTORE _pImageStore;
  40.     virtual IShellFolder * GetSF() {ASSERT(0);return NULL;};
  41.     virtual HWND GetHWND() {ASSERT(0); return _hwnd;};
  43.     virtual HRESULT UpdateLogoCallback( DWORD dwItem, int iIcon, HBITMAP hImage, LPCWSTR pszCache, BOOL fCache ) ;
  44.     virtual REFTASKOWNERID GetTOID();
  46.     BOOL IsItInCache( LPCWSTR pszItemPath, LPCWSTR pszGLocation, const FILETIME * pftDateStamp );
  47.     void ReleaseImageStore( void );
  48. };
  50. #endif  // _HTMLBM_H