Opening KDE Konsole from Qt and sending a command
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Ok, so I need to open a KDE linux terminal console from my Qt program, and this is what I've done to achieve that:
@QProcess p1;
p1.startDetached("konsole");
p1.waitForFinished();
@And this works fine.
The problem is: after I open the console (by the way, it has to be konsole, can't use any "console" function inside Qt), I need to pass a command to it, i.e. I want the console to execute "ps -al" or any other command.
I read a lot about QProcess and all that, and I tried to do the following:
@QProcess p1;
p1.startDetached("konsole");
p1.waitForStarted();
p1.write("echo hello\n");
p1.waitForBytesWritten();
p1.waitForFinished();
@I even tried to replace startDetached by start since I read that it could be a problem, but again the console that was opened didn't print anything.
Any ideas how I could open a console and send a command to that console (preferably using p1.startDetached instead of p1.start)?
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Maybe you need to start BASH instead of konsole?
@bash -c "ps -al"@
@ QProcess process;
process.start("bash", QStringList()<<"-c"<<"ps -al");
process.waitForFinished();
qDebug()<<process.readAll();@ -
Not sure, but perhaps Konsole exposes a DBUS interface you can use?
Edit
Yes, it turns out Konsole does! I found this:
@
qdbus org.kde.konsole /Sessions/$session_num sendText "$command"
sleep 0.1
qdbus org.kde.konsole /Sessions/$session_num sendText $'\n'
sleep 0.1@See http://www.linuxjournal.com/content/start-and-control-konsole-dbus
That means that you should also be able to do this directly from Qt itself, as Qt also supports DBUS directly.
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I read that but I still have no clue how to do it :(
I did a quick QDBus code in the past, just to receive data from HAL when a device was removed:
@
QDBusConnection::systemBus().connect(
"org.freedesktop.Hal",
"/org/freedesktop/Hal/Manager",
"org.freedesktop.Hal.Manager",
"DeviceRemoved",
this, SLOT(deviceRemoved(const QString)));
@But I don't know how I could make use of that to send a command to a Konsole QApplication.
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You can use: "callWithCallback":http://doc.qt.nokia.com/4.7-snapshot/qdbusconnection.html#callWithCallback