_OLE2 AND .INI FILES
by Billy Cousins


Listing One

// Classes for managing OLE compound files and storages within a file.
//----------------------------------------------------------------------------
// CxOleDocFile
class CxOleDocFile : public CObject
{
    DECLARE_DYNAMIC(CxOleDocFile)
// Constructors and Destructors
public:
    CxOleDocFile ();
    ~CxOleDocFile ();
// Operations
    // Create a compound file.
    BOOL CreateDocFile (const char * pszFilename,
        DWORD dwOpenFlags = CX_CREATE_DOCFILE_DEFAULT,
        CFileException * pError = NULL);
    // Open a compound file.
    BOOL OpenDocFile (const char * pszFilename,
        DWORD dwOpenFlags = CX_OPEN_DOCFILE_DEFAULT,
        CFileException * pError = NULL);
    // Get integer data from file.
    UINT GetProfileInt (const char* pszSection, const char* pszEntry,
        int iDefault, CFileException* pError = NULL);
    // Get string data from file.
    int GetProfileString (const char* pszSection, const char *pszEntry,
        const char* pszDefault, char* pszRetBuf, int cbRetBuf,
        CFileException* pError = NULL);
    // Get all of the sections.
    BOOL GetSections (CStringArray& rgSectionNamesRet);
    // Load the contents of an ini file into a compound file.
    BOOL LoadFromIni (const char * pszIniFilename);
    // Write a string to the doc file.
    BOOL WriteProfileString (const char * pszSection,
        const char * pszEntry, const char * pszValue,
        CFileException * pError = NULL);
// Implementation
public:
    virtual void Close ();
    virtual void Flush ();
#ifdef _DEBUG
    virtual void Dump(CDumpContext&) const;
    virtual void AssertValid() const;
#endif
protected:
    CxOleStorage * m_pRootStg;
}; // end class CxOleDocFile
//----------------------------------------------------------------------------
// CxOleStorage
class CxOleStorage : public CObject
{
    DECLARE_DYNAMIC(CxOleStorage)
// Constructors and Destructors
public:
    CxOleStorage (LPSTORAGE lpStorage = NULL);
    ~CxOleStorage ();
// Operations
    // Create a new storage
    BOOL CreateStorage (LPSTORAGE lpParentStg, const char * pszName,
        DWORD dwOpenFlags = CX_CREATE_STORAGE_DEFAULT,
        CFileException * pError = NULL); 
    // Delete an storage or stream from the file.
    virtual BOOL DestroyElement (const char * pszName,
        CFileException * pError = NULL);
    // Enumerate the elements in a storage and return the ones
    // that match the specified type.
    BOOL EnumElements (enum tagSTGTY tyElem, CStringArray& rgNamesRet);
    // Open a storage.
    BOOL OpenStorage (LPSTORAGE lpParentStg, const char * pszName,
        DWORD dwOpenFlags = CX_OPEN_STORAGE_DEFAULT,
        CFileException * pError = NULL);
// Implementation
public:
    virtual void Close (); // May raise exception.
    virtual void Flush (); // May raise exception.
#ifdef _DEBUG
    virtual void Dump(CDumpContext&) const;
    virtual void AssertValid() const;
#endif
protected:
    friend class CxOleDocFile;
    LPSTORAGE m_lpStorage;
    BOOL m_bCloseOnDelete;
}; // end class CxOleStorage


Listing Two

// Just like the Windows APIs except a slightly different name.
UINT CxGetPrivateProfileInt (LPCSTR lpszSection, LPCSTR lpszEntry,
    int iDefault, LPCSTR lpszFilename);
int CxGetPrivateProfileString(LPCSTR lpszSection, LPCSTR lpszEntry,
    LPCSTR lpszDefault, LPSTR lpszReturnBuffer, int cbReturnBuffer,
    LPCSTR lpszFilename);
BOOL CxWritePrivateProfileString (LPCSTR lpszSection, LPCSTR lpszEntry,
    LPCSTR lpszString, LPCSTR lpszFilename);