Hi all, could you please help a bit. I try to iterate over resources in address book, but fail so far. using namespace TDEABC; AddressBook* kab = TDEABC::StdAddressBook::self(false); TDEABC::StdAddressBook::setAutomaticSave(false); TQPtrList<Resource> lit = kab->resources(); TQPtrListIterator<Resource> it( lit ); Resource *res; while ( (res = it.current()) != 0 ) { ++it; debug() << "SUB RES ID :" << res->identifier() << "\n"; } but I get std-test.cc: In function ‘int main(int, char**)’: std-test.cc:72:38: error: invalid use of incomplete type ‘class TDEABC::Resource’ debug() << "SUB RES ID :" << res->identifier() << "\n"; ^ In file included from /opt/trinity/include/tdeabc/addressbook.h:29:0, from /opt/trinity/include/tdeabc/stdaddressbook.h:24, from std-test.cc:7: /opt/trinity/include/tdeabc/addressee.h:45:7: error: forward declaration of ‘class TDEABC::Resource’ class Resource; ^ In file included from /usr/include/tqt3/ntqstrlist.h:46:0, from /usr/include/tqt3/ntqstringlist.h:47, from /usr/include/tqt3/ntqcolor.h:46, from /usr/include/tqt3/ntqpalette.h:46, from /usr/include/tqt3/ntqwidget.h:48, from /usr/include/tqt3/ntqdesktopwidget.h:43, from /usr/include/tqt3/ntqapplication.h:45, from /usr/include/tqt/tqapplication.h:33, from /opt/trinity/include/tdeapplication.h:40, from std-test.cc:3: /usr/include/tqt3/ntqptrlist.h: In instantiation of ‘void TQPtrList<type>::deleteItem(TQPtrCollection::Item) [with type = TDEABC::Resource; TQPtrCollection::Item = void*]’: std-test.cc:92:1: required from here /usr/include/tqt3/ntqptrlist.h:153:21: warning: possible problem detected in invocation of delete operator: [-Wdelete-incomplete] if ( del_item ) delete (type *)d; ^