Simulating post-request (using form-data) with file in C/C++

First I started to use WinInet. God, it sucks like most Windows API. I played about a day with http://support.microsoft.com/kb/165298
And I failed to post anything, from what django could make request. Aslo wierdshark shown that MS does a bit strange request (it looses some header about multipart form-data).
Today I took libcurl, it has a rich example who you can perform your POST-request.
Note, that it's just example and you have to define a record and a record_length.

As for me, I took such piece of code from there:

 CURL *curl;
 CURLcode res;
 //
 curl_global_init(CURL_GLOBAL_ALL); 
 curl = curl_easy_init();


 struct curl_httppost* post = NULL;  
 struct curl_httppost* last = NULL;  
 struct curl_forms forms[2];  
 char file1[] = "d:\\backup\\thumb.jpg";  

 forms[0].option = CURLFORM_FILE;  
 forms[0].value = file1;  
 forms[1].option = CURLFORM_END;

 curl_formadd(&post, &last, CURLFORM_COPYNAME, 
              "pictures",   
              CURLFORM_ARRAY, forms, CURLFORM_END);

 res = curl_easy_perform(curl);
 curl_easy_cleanup(curl);

Pretty enough. But python is always prettier: snippet
;)