C / C++ / MFC

hwndEdit = CreateWindowEx(0, WC_EDIT, 0, WS_VISIBLE | WS_CHILD | WS_TABSTOP | WS_BORDER | ES_AUTOHSCROLL, 11, 11, 147, 23, hwnd, (HMENU)IDC_EDIT1, hInst, 0);

• hwndEdit is derclared of type HWND
• hwnd holds the parents HWND
• hInst holds HINSTANCE of the program
• IDC_EDIT has been defined as an integer used to identify messages from this control

#include <stdio.h>
#include <curl/curl.h>
 
int main(void)
{
  CURL *curl = curl_easy_init();
  FILE *output_to = fopen( "output.txt", "w" );
 
  if( curl && output_to )
  {
    curl_easy_setopt(curl, CURLOPT_URL,       "curl.haxx.se" );
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, output_to      );
    curl_easy_perform(curl);
  }

  if( curl ) curl_easy_cleanup(curl);
  if( output_to ) fclose( output_to );
}