57 lines
1.1 KiB
C++
57 lines
1.1 KiB
C++
#pragma once
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#include "MemoFile.h"
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class CDBTMemoFile : public CMemoFile
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{
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DECLARE_DYNAMIC(CDBTMemoFile)
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// Constructors
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public:
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CDBTMemoFile();
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// Attributes
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public:
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DBT_HEAD m_DBTHead;
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// Overridables
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public:
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// Operations
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public:
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// Implementation
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public:
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~CDBTMemoFile();
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virtual BOOL Open(LPCTSTR lpszName, UINT nOpenFlag);
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virtual void Close();
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virtual UINT GetMemoFileType();
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virtual BOOL ReadMemoRecord(DBF_ULONG lOffsetRec, DBF_LONG& nLen, CTDbfString& strMemo);
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virtual BOOL ReadMemoRecord(DBF_ULONG lOffsetRec, DBF_LONG& nLen, unsigned char** pMemoData);
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virtual BOOL WriteMemoRecord(DBF_ULONG& lOffsetRec, DBF_LONG& nLen, CTDbfString& strMemo);
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#ifdef _DEBUG
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virtual void AssertValid() const;
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virtual void Dump(CDumpContext& dc) const;
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#endif
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protected:
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BOOL ReadHeader();
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BOOL WriteHeader();
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private:
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DBF_LONG AddMemoRecord(CTDbfString& strMemo);
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void UpdateMemoRecord(DBF_ULONG lOffsetRec, CTDbfString& strMemo);
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BOOL DeleteMemoRecord(DBF_ULONG lDelRec);
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BOOL UndeleteMemoRecord(DBF_ULONG& lOffsetRec, CTDbfString& strMemo);
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};
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