Web Request using DLL

Hello,

I want to make a WebRequest "PATCH", But is not supportet with MT4 (I already try override headers and is not working), So I want to do it using #import "wininet.dll". So I need the structure to make this happen. 

HINTERNET InternetOpenA(
   LPCSTR lpszAgent,
   DWORD  dwAccessType,
   LPCSTR lpszProxy,
   LPCSTR lpszProxyBypass,
   DWORD  dwFlags
);
HINTERNET InternetConnectA(
   HINTERNET     hInternet,
   LPCSTR        lpszServerName,
   INTERNET_PORT nServerPort,
   LPCSTR        lpszUserName,
   LPCSTR        lpszPassword,
   DWORD         dwService,
   DWORD         dwFlags,
   DWORD_PTR     dwContext
);
HINTERNET HttpOpenRequestA(
   HINTERNET hConnect,
   LPCSTR    lpszVerb,
   LPCSTR    lpszObjectName,
   LPCSTR    lpszVersion,
   LPCSTR    lpszReferrer,
   LPCSTR    lplpszAcceptTypes,
   DWORD     dwFlags,
   DWORD_PTR dwContext
);
BOOL HttpSendRequestA(
   HINTERNET hRequest,
   LPCSTR    lpszHeaders,
   DWORD     dwHeadersLength,
   LPVOID    lpOptional,
   DWORD     dwOptionalLength
);