En réponse à Axel Dörfler <axeld@xxxxxxxxxxxxxxxx>: > I hope you write the Tracker add-on in a way that it loads the > preferences app as an add-on or something like this? don't know how this is done in R5 and don't see what you mean. my idea was to add the needed hook with the main(): void process_refs(entry_ref directory, BMessage* message, void* reserved) { } int main() { } i hope a link which points to Backgrounds binary can be added to the tracker addon folder (is this /boot/home/config/add-ons/Tracker ?). i have to try to be sure though. > > He should have catched up in the meantime :-) > If not, just try again, he now has a working mail system again... > again, i don't know anything, no response from him, even with several mails. Jérôme