C++ API / function help

[metguru]

Hi, I'm kind of new to C++, but not to programming in general. I'm trying to run a program that will download a file, but I'm getting errors at lines 9 and 12.

#include <iostream>
#include <string>
#include <windows.h>
  int Url(LPCTSTR szURL, LPCTSTR szFileName){
  HRESULT URLDownloadToFile(
  LPUNKNOWN pCaller,
  LPCTSTR szURL,//URL
  LPCTSTR szFileName,//Save file
  DWORD 0,/ERROR 1
  LPBINDSTATUSCALLBACK lpfnCB
  );
  if (HRESULT == "S_OK") {//ERROR 2
     return 1;            
  }
  }
int WINAPI
WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR pszCmdLine, int iCmdShow)
{
    int n = Url("http://google.com/","g.html");
	return 0;
}

I'm just trying to simplify the API to get used to using functions. Any help would be appreciated!