74 lines
2.5 KiB
C
74 lines
2.5 KiB
C
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#pragma once
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#include <shimgdata.h>
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// PRIORITIES
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#define PRIORITY_NORMAL ITSAT_DEFAULT_PRIORITY
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#define PRIORITY_M5 (PRIORITY_NORMAL - 5 * 0x1000)
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#define PRIORITY_M4 (PRIORITY_NORMAL - 4 * 0x1000)
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#define PRIORITY_M3 (PRIORITY_NORMAL - 3 * 0x1000)
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#define PRIORITY_M2 (PRIORITY_NORMAL - 2 * 0x1000)
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#define PRIORITY_M1 (PRIORITY_NORMAL - 1 * 0x1000)
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#define PRIORITY_NORMAL ITSAT_DEFAULT_PRIORITY
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#define PRIORITY_P1 (PRIORITY_NORMAL + 1 * 0x1000)
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#define PRIORITY_P2 (PRIORITY_NORMAL + 2 * 0x1000)
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#define PRIORITY_P3 (PRIORITY_NORMAL + 3 * 0x1000)
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#define PRIORITY_P4 (PRIORITY_NORMAL + 4 * 0x1000)
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#define PRIORITY_P5 (PRIORITY_NORMAL + 5 * 0x1000)
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#define PRIORITY_EXTRACT_FAST PRIORITY_P1
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#define PRIORITY_EXTRACT_NORMAL PRIORITY_NORMAL
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#define PRIORITY_EXTRACT_SLOW PRIORITY_M1
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class CGdiPlusThumb : public IExtractImage,
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public IPersistFile,
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public CComObjectRoot,
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public CComCoClass< CGdiPlusThumb, &CLSID_GdiThumbnailExtractor >
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{
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public:
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CGdiPlusThumb();
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~CGdiPlusThumb();
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BEGIN_COM_MAP( CGdiPlusThumb )
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COM_INTERFACE_ENTRY( IExtractImage )
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COM_INTERFACE_ENTRY( IPersistFile )
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END_COM_MAP( )
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DECLARE_REGISTRY( CGdiPlusThumb,
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_T("Shell.ThumbnailExtract.GdiPlus.1"),
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_T("Shell.ThumbnailExtract.GdiPlus.1"),
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IDS_GDITHUMBEXTRACT_DESC,
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THREADFLAGS_APARTMENT);
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DECLARE_NOT_AGGREGATABLE( CGdiPlusThumb );
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// IExtractImage
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STDMETHOD (GetLocation)(LPWSTR pszPathBuffer, DWORD cch,
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DWORD *pdwPriority, const SIZE *prgSize,
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DWORD dwRecClrDepth, DWORD *pdwFlags);
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STDMETHOD (Extract)(HBITMAP *phBmpThumbnail);
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// IPersistFile
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STDMETHOD (GetClassID)(CLSID *pClassID);
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STDMETHOD (IsDirty)();
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STDMETHOD (Load)(LPCOLESTR pszFileName, DWORD dwMode);
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STDMETHOD (Save)(LPCOLESTR pszFileName, BOOL fRemember);
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STDMETHOD (SaveCompleted)(LPCOLESTR pszFileName);
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STDMETHOD (GetCurFile)(LPOLESTR *ppszFileName);
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protected:
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HRESULT CreateDibFromBitmapImage(HBITMAP *pbm);
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WCHAR m_szPath[MAX_PATH];
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SIZE m_rgSize;
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DWORD m_dwRecClrDepth;
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BOOL m_fOrigSize;
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BOOL m_fFillBackground;
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BOOL m_fHighQuality;
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IShellImageData * m_pImage;
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IShellImageDataFactory * m_pImageFactory;
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};
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