www.pudn.com > stocksoft.rar > DBFEngine.h

#ifndef _DBF_H 
#define _DBF_H 
 
#define ASCEND  0 
#define DESCEND 1 
 
struct strField 
{ 
	TCHAR m_pfieldName[11]; 
	TCHAR m_fieldType; 
	UINT m_fieldLen; 
	UINT m_decCount;//XIAO SHU's counts 
}; 
 
class CDbFile: public CObject 
{ 
public: 
public: 
	CDbFile(); 
	~CDbFile(); 
	bool OpenDbf(LPTSTR pfileName); 
	bool CloseDbf(); 
	 
	BOOL InitHeadStructure(); 
	void GetFieldInfo(); 
	CString CharToWideChar(PBYTE,DWORD); 
	int WideCharToChar(CString,char*); 
	DWORD ReadFieldStr(UINT nRecNumber,UINT nFieldNum,PBYTE fieldBuffers); 
    DWORD SetFieldStr(UINT nRecNumber,UINT nFieldNum,PBYTE fieldBuffers); 
	DWORD AppendRecord(); 
 
	DWORD WriteAllDataToFile(); 
	DWORD SetFieldStr(UINT nRecNumber,UINT nFieldNum,PBYTE fieldBuffers,DWORD dwLen); 
	DWORD AppendBlankRecordInMem(); 
	DWORD DeleteRecordInMem(int num); 
	DWORD SetRecordCountInMem(int num); 
 
	WORD GetFieldCount();//return field count. 
	DWORD GetRecordCount(); 
	WORD  GetHeadLen(); 
	WORD  GetRecordLen(); 
	PBYTE GetAllDataPointer(); 
	strField* GetFieldInfoArray(); 
	BOOL DeleteAllDataPointer(); 
	BOOL DeleteFieldInfoArrayPointer(); 
	BYTE GetB(HANDLE hFile,DWORD offset);//return a byte from file's offset 
	WORD GetW(HANDLE hFile,DWORD offset,bool DIRECT);//return a word from file's offset 
	DWORD GetDW(HANDLE hFile,DWORD offset,bool DIRECT);//return a double word from file's offset 
	 
	bool OpenFpt(LPTSTR pfileName); 
	bool CloseFpt(); 
	//DWORD GetMemoFieldFromDbfFile(UINT nRecNumber,UINT nFieldNum,PBYTE fieldBuffers); 
	DWORD GetFptDataUnitLen(); 
	DWORD GetMemoFieldCommentLen(DWORD dwOffsetBlockNum);	 
	DWORD GetMemoFieldOffsetNumFromDbfFile(UINT nRecNumber,UINT nFieldNum,PBYTE fieldBuffers); 
	DWORD InitGetMemField(UINT nRecNumber,UINT nFieldNum,PBYTE fieldBuffers);//return len for GetMemFieldStr() 
	DWORD GetMemoFieldFromDbf(UINT nRecNumber,PBYTE fieldBuffers); 
 
DWORD SetFieldOffset(UINT nFieldNum); 
DWORD SetFieldLen(UINT nFieldNum); 
DWORD GetFieldStr(UINT nRecNumber,PBYTE fieldBuffers); 
 
DWORD InitGetMemField(UINT nRecNumber,PBYTE fieldBuffers); 
DWORD GetMemFieldStr(PBYTE memoFieldBuffers,DWORD len); 
DWORD GetFptFileSize(); 
DWORD GetMemFieldStr(UINT nRecNumber,PBYTE fieldBuffers); 
 
DWORD GetMemFieldSize(PBYTE allFptDataBuf,UINT nRecNumber); 
DWORD GetMemFieldStrFromMemory(PBYTE allFptDataBuf,UINT nRecNumber,PBYTE fieldBuffers,DWORD n); 
BOOL ReadFptToMemory(PBYTE); 
HANDLE GetFptHandle(); 
////////////////////////////////////////// 
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
HANDLE  OpenFile(LPTSTR pfileName); 
BOOL CloseFile(HANDLE  hFile); 
BOOL GetRecordCount(LPBYTE pAllData,DWORD& recordCount); 
BOOL GetRecordLen(LPBYTE pAllData,DWORD& recordLen); 
BOOL GetHeadLen(LPBYTE pAllData,DWORD& headLen); 
BOOL GetFieldCount(DWORD headLen,DWORD& fieldCount); 
BOOL GetFileSize(HANDLE  hFile,DWORD& len); 
BOOL ReadAllData(HANDLE  hFile,LPBYTE pAllData,DWORD len,DWORD dwFileLen); 
void GetFieldInfo(LPBYTE pAllData,DWORD fieldCount,strField* pFieldInfoArray); 
DWORD ReadFieldStr(LPBYTE pAllData,strField* pFieldInfoArray, 
				DWORD headLen,DWORD recordLen, 
				UINT nRecNumber,UINT nFieldNum,PBYTE fieldBuffers); 
 
 
//CString GetInstallDir(); 
CString GetExeDir(); 
}; 
#endif 
/////////////////////////////////////////////////////////////////////////////