QT中DBus的用法(二)

1) 创建一个QDBusInterface的实例

QDBusInterface iface( "hotel.server",

"/hotel/path",

"hotel.interface", QDBusConnection::sessionBus());

if (!iface.isValid()) {

qDebug() << qPrintable(QDBusConnection::sessionBus().lastError().message());

exit(1);

}

2) 传递参数

int num_room;

num_room= this->ui->checkInlineEdit->text().toInt();

3) 呼叫远程的checkIn，参数为num_room

QDBusReply reply = iface.call("checkIn", num_room);

4) 判断返回值

if (reply.isValid()) {

num_room = reply.value();

qDebug("Got %d %s\n", num_room, (num_room > 1) "rooms" : "room");

} else {

qDebug( "Check In fail!\n");

}