C / C++ / MFC

Chidori-chan wrote:

do you know any good sites that explains arrays using C?

extern CMyApp theApp;
CMainFrame *pFrame = (CMainFrame*)AfxGetApp()->m_pMainWnd;

char FileName[MAX_PATH];
GetModuleFileName(NULL, FileName, MAX_PATH);  // Here you have the whole path with the app name

// Here I was extracting the path of the app, to create a new file with other extension in the same folder that my app
CString m_szName = FileName;
m_szName = m_szName.Left(m_szName.ReverseFind('\\'));
m_szName += "\\MyNewName.ext";
CFile f (m_szName, CFile::modeCreate | CFile::modeReadWrite);

// other stuff...

Regards.
--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
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   CFieldExchange fieldX;
   LPCTSTR szName[256];
   LPSTR prgStrVals;
   long* prgLengths;
   int nMaxLength = 255;

RFX_Text_Bulk(&fieldX, szName, &prgStrVals, &prgLengths, nMaxLength);

CFieldExchange fieldX;
LPCTSTR pszName = "ColName";
LPSTR prgStrVals[nRows];
long prgLengths[nRows];
for (int i = 0; i < nRows; ++i)
{
    prgStrVals[i] = (LPSTR)new char[256];
}
int nMaxLength = 256;

RFX_Text_Bulk(&fieldX, pszName, &prgStrVals, &prgLengths, nMaxLength);

Larry Mills Sr wrote:

Please excuse my ignorance

CFieldExchange fieldX;       // this will probably be defined elsewhere
LPCTSTR pszName = "Recipe";  // column name [ or should it be "m_Instructions" ? ]
int nRows = ?;               // set this to the number of rows in the data source
int nMaxLength = 1024;       // max length of each row of data returned
LPSTR prgStrVals[nRows];     // the rows of data will be stored in these fields
long prgLengths[nRows];      // the length of the data stored in prgStrVals goes in these fields
// initialise the strings for storing the data
for (int i = 0; i < nRows; ++i)
{
    prgStrVals[i] = (LPSTR)new char[nMaxLength];
}

RFX_Text_Bulk(&fieldX, pszName, &prgStrVals, &prgLengths, nMaxLength);

Larry Mills Sr wrote:

RFX_Text_Bulk(pFX, _T("[Instructions]"), (LPSTR *)&m_Instructions,(long**)prgLengths,nMaxLength);//doesn't work

RFX_Text(pFX, _T("[Instructions]"), m_Instructions, 1024);

Larry Mills Sr wrote:

I tried that, and while it gave me no errors; it also DID NOT put all the data from m_Instructions into the database (It has the data in the varable before calling Update();)

Larry Mills Sr wrote:

it also DID NOT put all the data from m_Instructions into the database (It has the data in the varable before calling Update();)