C / C++ / MFC

std::string encoded_login = base64_encode(m_sLogin.GetBuffer(m_sLogin.GetLength()),m_sLogin.GetLength());

error C2664: 'base64_encode' : cannot convert parameter 1 from 'char *' to 'const unsigned char *'

Koma Wang wrote:

the error code:
error C2664: 'base64_encode' : cannot convert parameter 1 from 'class CString' to 'const unsigned char *'

base64_encode((LPBYTE) (LPCTSTR) m_sLogin, m_sLogin.GetLength());

base64_encode((const LPBYTE) (LPCTSTR) m_sLogin, m_sLogin.GetLength());

std::string encoded_login = base64_encode((const unsigned char*)(LPCTSTR)m_sLogin,m_sLogin.GetLength());

LRESULT CALLBACK childWndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK parentWndProc(HWND, UINT, WPARAM, LPARAM);


int WINAPI WinMain ()
{
  
    while (GetMessage (&messages, NULL, 0, 0))
    {
        TranslateMessage(&messages);
        DispatchMessage(&messages);
    }
    return messages.wParam;
}

 
/*  This function is called by the Windows function DispatchMessage()  */
LRESULT CALLBACK parentWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    
    switch (message)                  /* handle the messages */
    {
      ... 
    }
    return 0;
}

/*  This function is called by the Windows function DispatchMessage()  */
LRESULT CALLBACK childWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)                  /* handle the messages */
    {
      ...         
    }
    return 0;
}

case WM_PAINT:
	PaintOpenGL();
break;

m_code wrote:

pHttpFile->AddRequestHeaders(L"content-length: 10\r\n", HTTP_ADDREQ_FLAG_ADD_IF_NEW);

CString szTranReq(L"/translate_a/t?client=t&sl=en&tl=tr");
	
CString szText(L"text=Hello");

CString szServer(L"www.google.com");

DWORD inetPort = 80;




CInternetSession inetSession(::AfxGetAppName(), 1, PRE_CONFIG_INTERNET_ACCESS, NULL, NULL, NULL);

inetSession.SetOption(INTERNET_OPTION_CONNECT_TIMEOUT, 1000 * 3);
inetSession.SetOption(INTERNET_OPTION_CONNECT_BACKOFF, 1000);
inetSession.SetOption(INTERNET_OPTION_CONNECT_RETRIES, 1);

CHttpConnection* pInetHttpConnection = inetSession.GetHttpConnection(szServer, inetPort, NULL, NULL); 


CHttpFile* pHttpFile = pInetHttpConnection->OpenRequest(
	CHttpConnection::HTTP_VERB_POST,
	szTranReq, NULL, 1, NULL, NULL,
	INTERNET_FLAG_EXISTING_CONNECT | INTERNET_FLAG_DONT_CACHE);



pHttpFile->AddRequestHeaders(L"Host: www.google.com\r\n", HTTP_ADDREQ_FLAG_ADD_IF_NEW);
pHttpFile->AddRequestHeaders(L"User-Agent: Mozilla/5.0\r\n", HTTP_ADDREQ_FLAG_ADD_IF_NEW);
pHttpFile->AddRequestHeaders(L"Accept-Encoding: deflate\r\n", HTTP_ADDREQ_FLAG_ADD_IF_NEW);
pHttpFile->AddRequestHeaders(L"content-length: 10\r\n", HTTP_ADDREQ_FLAG_ADD_IF_NEW);
pHttpFile->AddRequestHeaders(L"Connection: Close\r\n", HTTP_ADDREQ_FLAG_ADD_IF_NEW);

pHttpFile->SendRequestEx(szText.GetLength()/*,HSR_INITIATE,1*/);
pHttpFile->WriteString(szText);
pHttpFile->EndRequest();

DWORD dwRet;
pHttpFile->QueryInfoStatusCode(dwRet);//always: dwRet is 400

pHttpFile->AddRequestHeaders(L"Accept-Encoding: deflate\r\n", HTTP_ADDREQ_FLAG_ADD_IF_NEW);

<br />
"Content-Type: application/x-www-form-urlencoded"

QString url = QString("/translate_a/t?client=t&sl=en&tl=tr");


    QHttpRequestHeader header = QHttpRequestHeader("POST", url, 1, 1);
    header.setValue("Host", "www.google.com");
    header.setValue("User-Agent", "Mozilla/5.0");
    header.setValue("Accept-Encoding", "deflate");
    header.setContentLength( text.length() );
    header.setValue("Connection", "Close");

    QByteArray ba("text=");
    ba.append( text );

    a_Http->setHost("www.google.com");
    a_Http->request(header,ba);

    a_done.exec(QEventLoop::AllEvents|QEventLoop::WaitForMoreEvents);

    QString out = QString::fromUtf8( a_Http->readAll() );