private static extern tobii_error_t tobii_api_create(out IntPtr api, IntPtr customAlloc, tobii_custom_log_t custom_log); // Custom alloc doesn't make sense in .NET
public static tobii_error_t tobii_api_create(out IntPtr api, tobii_custom_log_t custom_log) { return(tobii_api_create(out api, IntPtr.Zero, custom_log)); }