typedef void (*zip_progress_callback_t)(double);
zip_register_progress_callback(zip_t *archive, zip_progress_callback_t progress_callback);
zip_register_progress_callback() is the obsolete version of zip_register_progress_callback_with_state(3).
zip_register_progress_callback() function registers a callback function progress_callback for the zip archive archive. This function is called during zip_close(3) after every zip archive entry that's completely written to disk. The value is a double in the range from 0.0 to 1.0. This can be used to provide progress indicators for user interfaces.
zip_register_progress_callback() was added in libzip 1.2.0. It was deprecated in libzip 1.3.0, use
Dieter Baron <firstname.lastname@example.org> and Thomas Klausner <email@example.com>