C / C++ / MFC

HINTERNET hOpenHandle, hConnectHandle, hResourceHandle; 
DWORD dwError, dwStatus; 
DWORD dwStatusSize = sizeof(dwStatus); 
hOpenHandle = ::InternetOpen("Example", INTERNET_OPEN_TYPE_PROXY, strProxyName, NULL, 0); 
if (NULL != hOpenHandle)
{
	hConnectHandle = ::InternetConnect(hOpenHandle, "www.microsoft.com", INTERNET_INVALID_PORT_NUMBER, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0);
	if (NULL != hConnectHandle)
	{
		hResourceHandle = ::HttpOpenRequest(hConnectHandle, "GET", "", HTTP_VERSION, NULL, 0, INTERNET_FLAG_DONT_CACHE, 0);
		if (NULL != hResourceHandle)
		{
resend: 
			BOOL bSendRequest = ::HttpSendRequest(hResourceHandle, NULL, 0, NULL, 0); 
			::HttpQueryInfo(hResourceHandle, HTTP_QUERY_FLAG_NUMBER | HTTP_QUERY_STATUS_CODE, &dwStatus, &dwStatusSize, NULL); 
			switch (dwStatus) 
			{ 
			case HTTP_STATUS_PROXY_AUTH_REQ: 
				//Proxy Authentication Required 
				// Insert code to set strUsername and strPassword. 
				InternetSetOption(hResourceHandle, INTERNET_OPTION_PROXY_USERNAME, (LPVOID)(LPCTSTR)strProxyUsername, strlen(strProxyUsername)+1); 
				InternetSetOption(hResourceHandle, INTERNET_OPTION_PROXY_PASSWORD, (LPVOID)(LPCTSTR)strProxyPassword, strlen(strProxyPassword)+1);
				goto resend; 
				break; 
			case HTTP_STATUS_DENIED: 
				//Server Authentication Required 
				// Insert code to set strUsername and strPassword. 
				InternetSetOption(hResourceHandle, INTERNET_OPTION_PROXY_USERNAME, (LPVOID)(LPCTSTR)strProxyUsername, strlen(strProxyUsername)+1); 
				InternetSetOption(hResourceHandle, INTERNET_OPTION_PROXY_PASSWORD, (LPVOID)(LPCTSTR)strProxyPassword, strlen(strProxyPassword)+1);
				goto resend; 
				break; 
			} 
			// Insert code to read the information from the hResourceHandle 
			// at this point.
			if (HTTP_STATUS_OK == dwStatus)
			{
                                //Gets a page
			}
                        ::InternetCloseHandle(hResourceHandle);
		}
		::InternetCloseHandle(hConnectHandle);
	}
	::InternetCloseHandle(hOpenHandle);
}

{<br />
int iControl = GetDlgCtrlID(hWindow3);<br />
SendMessage(hWindow3,WM_SETFOCUS,iControl,(LPARAM)hWindow3);<br />
hSend = SendMessage(hWindow3,WM_LBUTTONDOWN, MK_LBUTTON,(LPARAM)1);<br />
hSend = SendMessage(hWindow3,WM_LBUTTONUP, 0,(LPARAM) 1);<br />
}