SIGNAL(messageSent(const Tp::Message &,Tp::MessageSendingFlags, const QString &)),
SLOT(onMessageSent(const Tp::Message &,Tp::MessageSendingFlags, const QString &)));
connect(channel.data(),SIGNAL(destroyed(QObject *)),SLOT(onChannelDestroyed(QObject *)));
SIGNAL(messageSent(const Tp::Message &,Tp::MessageSendingFlags, const QString &)),
SLOT(onMessageSent(const Tp::Message &,Tp::MessageSendingFlags, const QString &)));
connect(channel.data(),SIGNAL(destroyed(QObject *)),SLOT(onChannelDestroyed(QObject *)));