How to convert LPWSTR to string in VC++

Author: ArkM
Source: http://www.daniweb.com/software-development/cpp/threads/155420

C++ Syntax (Toggle Plain Text)

bool cvtLPW2stdstring(std::string& s, const LPWSTR pw,


                      UINT codepage = CP_ACP)


{


    bool res = false;


    char* p = 0;


    int bsz;


 


    bsz = WideCharToMultiByte(codepage,


        0,


        pw,-1,


        0,0,


        0,0);


    if (bsz > 0) {


        p = new char[bsz];


        int rc = WideCharToMultiByte(codepage,


            0,


            pw,-1,


            p,bsz,


            0,0);


        if (rc != 0) {


            p[bsz-1] = 0;


            s = p;


            res = true;


        }


    }


    delete [] p;


    return res;


}


 


int main()


{


    wchar_t msg[] = L"Hello, world!";


    std::string s("\?");


 


    cvtLPW2stdstring(s,msg);


    std::cout << s << std::endl;


 


    return 0;


}