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convbase.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++
- #ifndef CONVBASE_H_
- #define CONVBASE_H_
- #define MAXOVERFLOWCHARS 16
- class CINetCodeConverter
- {
- private:
- UINT m_uCodePage;
- int m_nCodeSet;
- BOOL m_fOutput;
- LPSTR m_lpDestStr;
- int m_cchDest;
- int m_cchOutput;
- int m_cchOverflow;
- UCHAR m_OverflowBuffer[MAXOVERFLOWCHARS];
- public:
- CINetCodeConverter();
- CINetCodeConverter(UINT uCodePage, int nCodeSet);
- virtual ~CINetCodeConverter() {}
- int GetCodeSet() {return m_nCodeSet;}
- HRESULT GetStringSizeA(LPCSTR lpSrcStr, int cchSrc, LPINT lpnSize = NULL);
- HRESULT ConvertStringA(LPCSTR lpSrcStr, int cchSrc, LPSTR lpDestStr, int cchDest, LPINT lpnSize = NULL);
- virtual int GetUnconvertBytes() = 0 ;
- virtual DWORD GetConvertMode() = 0 ;
- virtual void SetConvertMode(DWORD mode) = 0 ;
- private:
- HRESULT WalkString(LPCSTR lpSrcStr, int cchSrc, LPINT lpnSize);
- BOOL EndOfDest(UCHAR tc);
- BOOL OutputOverflowBuffer();
- protected:
- virtual HRESULT ConvertChar(UCHAR tc, int cchSrc=-1) = 0;
- virtual BOOL CleanUp() = 0;
- protected:
- inline BOOL Output(UCHAR tc)
- {
- BOOL fDone = TRUE;
- if (m_fOutput) {
- if (m_cchOutput < m_cchDest) {
- *m_lpDestStr++ = tc;
- } else {
- (void)EndOfDest(tc);
- fDone = FALSE;
- }
- }
- m_cchOutput++;
- return fDone;
- }
- };
- #endif /* CONVBASE_H_ */