Hi again,
perhaps you can help me understand few things

1. I want to know how the resources are working (for now I'm focused on the
calendar) and how I can get all resources. I think same logic applies to
the address book.

I have this in my test code:

        KCal::Event::List events = calendar->events();

        for (KCal::Event::List::ConstIterator i = events.begin(); ...

                KCal::ResourceCalendar *resource = calendar->resource(*i);
                debug() << "RES ID :" << resource->infoText( ) << "\n";
                debug() << "Event UID:" << (*i)->uid() << "\n";
                debug() << "DESCR.   :" << (*i)->description() << "\n";

and I see 

test: DEBUG: RES ID :<b>Calendar</b><br>Type: Calendar in local file
test: DEBUG: Event UID:KOrganizer-907657708.300
test: DEBUG: DESCR.   :

test: DEBUG: RES ID :<b>Calendar</b><br>Type: Calendar in local file
test: DEBUG: Event
UID:6D57BED4-B881-41E4-B956-275EAC155D4B-0DD10CAB-DBAE-46FB-888D-0ACD678A78F1
test: DEBUG: DESCR.   :

test: DEBUG: RES ID :<b>Calendar</b><br>Type: Calendar in local file
test: DEBUG: Event UID:libkcal-127920932.676
test: DEBUG: DESCR.   :Martin Opitz

test: DEBUG: RES ID :<b>MoonCal</b><br>Type: Calendar in local file
test: DEBUG: Event
UID:F2320209-5806-4075-B7F3-253AEF30942A-0DD10CAB-DBAE-46FB-888D-0ACD678A78F1
test: DEBUG: DESCR.   :

test: DEBUG: RES ID :<b>birthdays-resource</b><br>Type:  Birthdays from the
calendar
test: DEBUG: Event UID:226_KABC_Birthday
test: DEBUG: DESCR.   :

test: DEBUG: RES ID :<b>Feiertage-AT</b><br>Type: calendar in local file
test: DEBUG: Event UID:KOrganizer-5773400.245
test: DEBUG: DESCR.   :gesetzlich anerkannter Feiertag (�ffentlicher
Ruhetag)

Please note the different info and UID structure. The question is how I get
all resources and their ids (well without reading the code - haha)

In opensync one would put "Calendar" in the config file and it would use
this resource.

I do not know if this was pragmatic decision or had another background. I
could imagine having one resource for the mobile or a like, but perhaps it
is not hard to implement more sophisticated logic and more flexible
configuration.

2. I want to know how the so called Cache works and if it is required to
somehow deal with it. I do not recall seeing something like this in the
kdepim opensync code

3. I use simple debug function

        kdbgstream debug() {
          return kdDebug() << "DEBUG: " ;
        }

but
./cal-reader-test  2>&1> /tmp/test

still outputs to the screen - this turns upside down all I knew about IO in
*nix. I must admit that I do not know that much about KDE3 now TDE
internal. It is just the best one in my opinion, so use it.

thank you in advance

regards