HTTP connection using MFC , CHttpConnection

Plz reply..

Thanks

How to make Proxy authentication in MFC. I use InternetSetOption method for it.But still i get ERROR_INTERNET_CONNOT_CONNECT.

in this i does not want to prompt the dialog box to take username and pwd , i do it hardcode,But i dosenot want to do this bcz every client have diff user name and pwd.What is possibility to tackle this.

Is any example for

Thanks..

HINTERNET hOpenHandle, hConnectHandle, hResourceHandle;WORD dwError, dwErrorCode;

hOpenHandle = InternetOpen("Example",

INTERNET_OPEN_TYPE_PRECONFIG, //INTERNET_OPEN_TYPE_DIRECT,

NULL,

NULL, INTERNET_FLAG_SECURE);

hConnectHandle = InternetConnect(hOpenHandle,

"www.pxlsoft.com",

INTERNET_INVALID_PORT_NUMBER,

//INTERNET_DEFAULT_HTTPS_PORT,

_T("LoginName"),

_T("PWD"),

INTERNET_SERVICE_HTTP,

0,0);

hResourceHandle = HttpOpenRequest(hConnectHandle, "POST",

"URL TO PHP",

NULL, NULL, NULL,

INTERNET_FLAG_KEEP_CONNECTION,

0);

resend:

CString h = _T("Content-Type: multipart/form-data");

CString s = _T("File_Content=hi&filename=hello.xml");

BOOL bo = HttpSendRequest(hResourceHandle,(LPCTSTR)&h, h.GetLength(),(LPVOID)&s ,s.GetLength());

// dwErrorCode stores the error code associated with the call to

// HttpSendRequest.

dwErrorCode = hResourceHandle ? ERROR_SUCCESS : GetLastError();

dwError = InternetErrorDlg(this->GetSafeHwnd(), hResourceHandle, dwErrorCode,

FLAGS_ERROR_UI_FILTER_FOR_ERRORS |

FLAGS_ERROR_UI_FLAGS_CHANGE_OPTIONS |

FLAGS_ERROR_UI_FLAGS_GENERATE_DATA,

NULL);

if (dwError == ERROR_INTERNET_FORCE_RETRY)

goto resend;

DWORD dwNumberOfBytesRead;

char sz[1024];

string strResult;

int result;

do {

result = InternetReadFile(hResourceHandle, sz, 1023, &dwNumberOfBytesRead);

sz[dwNumberOfBytesRead] = '\0';

int x = strlen(sz);

strResult += sz;

memset(sz, 0, 1024);

} while(result && dwNumberOfBytesRead != 0);

Q. this is the code which i am using for authentication but i m unable to POST data , GET will work.

Q.Why INTERNET_INVALID_PORT_NUMBER used in InternetConnection , i use  443 but it not working , Dailog box for asking Username and PWD will not be pop up if i use 443. 

Q.Authentication is become Heaktic for me.