Function gdk_pixbuf_sys::gdk_pixbuf_save_to_callback

pub unsafe extern "C" fn gdk_pixbuf_save_to_callback(
    pixbuf: *mut GdkPixbuf,
    save_func: GdkPixbufSaveFunc,
    user_data: gpointer,
    type_: *const c_char,
    error: *mut *mut GError
    ...
) -> gboolean