Question

This is My code:

char cName[20] = {0};
int iSum = 0;
int k=0;

k=GetDlgItemText(IDC_EName,LPTSTR(cName),11);

k=_tcslen((wchar_t*)cName);
for(unsigned int i=0;i<=k;i++)
    iSum+=cName[i]-1;

m_sSerial.Format(_T("%i"), iSum);
SetDlgItemText(IDC_ESerial, (LPCTSTR)m_sSerial);

I tried both of them in MSVC 6 and MSVC 2008(this one recently, of course)
but

MSVC 6 reult = 308
and MSVC 2008 result =241.

input of both =MSVC

what’s wrong?
why I ‘ve got 2 different answers and how to fix it in MSVC2008?

Answer 1

Don’t do forceful typecasting. Remove all LPTSTR, LPCTSTR, (wchar_t*) typecasting. Declare cName as:

TCHAR cName[20] = {0};

This will ensure cName is WCHAR for Unicode builds and GetDlgItemTextW is called for Unicode builds, and cName would be char for MBCS builds and GetDlgItemTextA is called.