int do_progress_callback (double ultotal, double ulnow, const std::string &filename);
std::string username () { return soundcloud_username_entry.get_text (); }
std::string password () { return soundcloud_password_entry.get_text (); }
int do_progress_callback (double ultotal, double ulnow, const std::string &filename);
std::string username () { return soundcloud_username_entry.get_text (); }
std::string password () { return soundcloud_password_entry.get_text (); }