Codejock Developer Community : CXTPPropExchange faq

CXTPPropExchange faq : No, because the struct is a binary...

Thu, 28 Feb 2008 03:09:04 +0000

Author: jimmy
Subject: 9715
Posted: 28 February 2008 at 3:09am

No, because the struct is a binary mapping of a file.

Jimmy

CXTPPropExchange faq : Hi, Maybe easy to change "char...

Wed, 27 Feb 2008 13:40:45 +0000

Author: Oleg
Subject: 9715
Posted: 27 February 2008 at 1:40pm

Hi,

Maybe easy to change "char szPassword" to "CString strPassword" in struct ?

CXTPPropExchange faq : Is this a correct way ?template<class...

Wed, 27 Feb 2008 07:31:58 +0000

Author: jimmy
Subject: 9715
Posted: 27 February 2008 at 7:31am

Is this a correct way ?

template void CharBufCpy(TYPE& szBuf, const CString& lpText)
{
    int iSize = sizeof(szBuf) - 1;
    memset(szBuf, 0, iSize + 1);
    int iLenText = lpText.GetLength();
    if (iLenText > iSize)
        iLenText = iSize;
    strncpy(szBuf, lpText, iLenText);
}

template BOOL PX_CharBuffer(CXTPPropExchange* pPX, LPCTSTR pszPropName, TYPE& szBuf, LPCTSTR lpDefault)
{
    if (pPX->IsStoring())
    {
        CString strVal(szBuf);
        return PX_String(pPX, pszPropName, strVal);
    }
    else
    {
        CString strVal;
        BOOL bOk = PX_String(pPX, pszPropName, strVal, lpDefault);
        if (bOk)
            CharBufCpy(szBuf, strVal);
        return bOk;
    }
}

Jimmy

CXTPPropExchange faq : Hello,i use CXTPPropExchange function...

Wed, 27 Feb 2008 07:03:52 +0000

Author: jimmy
Subject: 9715
Posted: 27 February 2008 at 7:03am

Hello,

i use CXTPPropExchange function to save & store some data.

static void PropLOS2Data(CXTPPropExchange* pPX, SLOS2Data& ld)
{
   CXTPPropExchangeSection secLD(pPX->GetSection("LOS2Data"));

   PX_ULong(&secLD, _T("CRC"), ld.dwCRC, 0);
   PX_ULong(&secLD, _T("LenData"), ld.dwLenData, 0);
    // ??? PX_CharBuffer(&secLD, _T("PasswordOnline"), ld.szPasswordOnline, "");
}

With this function i save/load some data from a struct.
DWORD, int values are no problem.

#define MAX_PASSWORD   19

struct SLOS2Data
{
ULONG dwCRC;
ULONG dwLenData;
char szPassword[MAX_PASSWORD + 1];
}

But how can i save/load szPassword ?
The szPassword is always \0 terminated.

I have wrote this template, but how can i save/load it ?
Or is there a other nice solution ?

template BOOL PX_CharBuffer(CXTPPropExchange* pPX, LPCTSTR pszPropName, TYPE& szBuf, LPCTSTR lpDefault)
{
    int iBufSize = sizeof(szBuf);
    // DWORD nBytes = iBufSize;
    // return PX_Blob(pPX, pszPropName, szBuf, nBytes);
}

Jimmy