Does CURLOPT_WRITEDATA and CURLOPT_READDATA work on win32 ?
Yes, but you cannot open a FILE * and pass the pointer to a DLL and have that DLL use the FILE * (as the DLL and the client application cannot access each others’ variable memory areas). If you set CURLOPT_WRITEDATA you must also use CURLOPT_WRITEFUNCTION as well to set a function that writes the file, even if that simply writes the data to the specified FILE *. Similarly, if you use CURLOPT_READDATA you must also specify CURLOPT_READFUNCTION.
