The Conversion between CString and LPCTSTR

 

         CString str = _T("Test");

         LPCTSTR p = (LPCTSTR)str;// LPCTSTR means: long pointer of const TChar string. LPTSTR

         CString strAnother1(p);

         CString strAnother2 = p;

 

Actually, I guess that there is an operator override for CString. For example, I write a brand new string class.

 

class SimonStr

{

public:

         SimonStr(TCHAR* pChar);

         TCHAR* GetRawPointer() const ;

 

         operator TCHAR* ()

        {

                 return GetRawPointer();

        }

        

private:

         TCHAR* m_pChar;

         size_t m_length;

};

 

SimonStr::SimonStr(TCHAR* pChar)

{

         m_pChar = pChar;

         m_length = _tcslen(pChar);/*strlenT(pChar); It's used for Unicode char*/

}

 

TCHAR* SimonStr::GetRawPointer() const

{

         return m_pChar;

}

 

Then we can do the conversion below:

SimonStr simonStr(_T("Test2"));

LPCTSTR p2 = (LPCTSTR)simonStr;