Methods need always return values?

[Robert Rawlins]

Hello Guys,
 
You'll have to excuse if this is a naive question to ask, however I'm new to using DBUS with GLib and need a little advice. C is also not my first language so that adds some extra spice to this mix.
 
After reading through the tutorial documentation found here http://dbus.freedesktop.org/doc/dbus-tutorial.html it seems that when calling a method which is published as a dbus service that method must _always_ return a value. Is that correct? What if the method which is called doesn't return a value? can I return a VOID value to save upsetting dbus?
 
Sorry again for the totally dumb question, bare with me. :-)
 
Thanks,
 
Robert
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