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bmp.h
Package: shell.rar　[view]
Upload User: xhy777
Upload Date: 2007-02-14
Package Size: 24088k
Code Size: 3k
Category:

Windows Kernel

Development Platform:

Visual C++

bmp.h：Code Content
  1. #ifndef _BMP_H
  2. #define _BMP_H
  4. ////////////////////////////////////////////////////////////////////////////////////
  5. //  structures for dealing with import filters.
  6. #pragma pack(2)                     // Switch on 2-byte packing.
  7. typedef struct 
  8. {
  9.     unsigned short  slippery: 1;    // True if file may disappear.
  10.     unsigned short  write : 1;      // True if open for write.
  11.     unsigned short  unnamed: 1;     // True if unnamed.
  12.     unsigned short  linked : 1;     // Linked to an FS FCB.
  13.     unsigned short  mark : 1;       // Generic mark bit.
  14.     union 
  15.     {
  16.         CHAR        ext[4];         // File extension.
  17.         HFILE       hfEmbed;        // handle to file containing graphic (for import).
  18.     };
  19.     unsigned short  handle;         // not used.
  20.     CHAR     fullName[260];         // Full path name and file name.
  21.     DWORD    filePos;               // Position in file of...
  22. } FILESPEC;
  24. typedef struct 
  25. {
  26.     HANDLE  h;
  27.     RECT    bbox;
  28.     int     inch;
  29. } GRPI;
  30. #pragma pack()
  32. BOOL HasGraphicsFilter( LPCWSTR pszExt, LPSTR szHandler, DWORD * pcbSize );
  34. class COfficeThumb :  public IExtractImage,
  35.                       public IPersistFile,
  36.                       public CComObjectRoot,
  37.                       public CComCoClass< COfficeThumb,&CLSID_OfficeGrfxFilterThumbnailExtractor >
  38. {
  39.     public:
  40.         COfficeThumb();
  41.         ~COfficeThumb();
  43.         BEGIN_COM_MAP( COfficeThumb )
  44.             COM_INTERFACE_ENTRY( IExtractImage )
  45.             COM_INTERFACE_ENTRY( IPersistFile )
  46.         END_COM_MAP( )
  48.         DECLARE_REGISTRY( COfficeThumb,
  49.                           _T("Shell.ThumbnailExtract.Office.1"),
  50.                           _T("Shell.ThumbnailExtract.Office.1"),
  51.                           IDS_OFCTHUMBEXTRACT_DESC,
  52.                           THREADFLAGS_APARTMENT);
  54.         DECLARE_NOT_AGGREGATABLE( COfficeThumb );
  56.         // IExtractImage
  57.         STDMETHOD (GetLocation) ( LPWSTR pszPathBuffer,
  58.                                   DWORD cch,
  59.                                   DWORD * pdwPriority,
  60.                                   const SIZE * prgSize,
  61.                                   DWORD dwRecClrDepth,
  62.                                   DWORD *pdwFlags );
  63.  
  64.         STDMETHOD (Extract)( HBITMAP * phBmpThumbnail);
  66.         // IPersistFile
  67.         STDMETHOD (GetClassID )(CLSID *pClassID);
  68.         STDMETHOD (IsDirty )();
  69.         STDMETHOD (Load )( LPCOLESTR pszFileName, DWORD dwMode);
  70.         STDMETHOD (Save )( LPCOLESTR pszFileName, BOOL fRemember);
  71.         STDMETHOD (SaveCompleted )( LPCOLESTR pszFileName);
  72.         STDMETHOD (GetCurFile )( LPOLESTR *ppszFileName);
  74.         LPBITMAPINFOHEADER MetaHeaderToBitmapInfo( LPMETAHEADER pmh );
  75.         LPBITMAPINFOHEADER HMetafileToBitmapInfo( GRPI pict );
  77.     protected:
  78.         WCHAR m_szPath[MAX_PATH];
  79.         SIZE m_rgSize;
  80.         DWORD m_dwRecClrDepth;
  81.         BITBOOL m_fOrigSize;
  82. };
  85. #endif