Thanks for the advice. I will check it. But may I say it is a little bit different from what I wanted to know? My original question is, if I already know the object path (for example /org/freedesktop/Hal/device/computer_backlight), the interface (org.freedesktop.Hal.Device.LaptopPanel), and the method (GetBrightness(void)), how should I inquiry this mehtod by dbus-send? Or isn't it enough to know just this three pieces of information call it? <br>
<br>Because I am also using Qt binding, and for example there is a API<br><h3 style="font-weight: normal;" class="fn"><font size="2">QDBusMessage QDBusMessage::createMethodCall ( const <a href="http://doc.qt.nokia.com/4.6/qstring.html">QString</a> & <i>service</i>, const <a href="http://doc.qt.nokia.com/4.6/qstring.html">QString</a> & <i>path</i>, const <a href="http://doc.qt.nokia.com/4.6/qstring.html">QString</a> & <i>interface</i>, const <a href="http://doc.qt.nokia.com/4.6/qstring.html">QString</a> & <i>method</i> )</font></h3>
But I can't figure out what is this argument "service". There is no corresponding concept in the DBus specification. Or as I asked, does it mean the well-known connection name? <br><br>Thanks for the help!<br>
<br><div class="gmail_quote">2010/6/10 danny <span dir="ltr"><<a href="mailto:tornadory@163.com" target="_blank">tornadory@163.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Perhaps you could try the "d-feet" tool. It could list all of the running dbus services.<br><br>For others, you should check the documents for specific program.<br><br><div>--<br>
<div> Best Regards,<br>
<br></div>
</div><br>在2010-06-10 05:18:13，ttlee1984 <<a href="mailto:ttlee1984@gmail.com" target="_blank">ttlee1984@gmail.com</a>> 写道：<div><br> <blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">
Hi all,<br><br>I have a question in the use of dbus-send. It requires the --dest argument. But what is it? In the man page it says it is the name of the connection, I assume it refers to what is called "well-known bus name" in the specification. But how should I use it or even know this name? For example, I want to check the brightness of the computer. I now know the object path ,which is /org/freedesktop/Hal/device/computer_backlight The interface is org.freedesktop.Hal.Device.LaptopPanel and the method is GetBrightness(void). So how shoud I use dbus-send to call this method? I have tried several combinations but did not get any luck. Any help will be appreciated.<br>
<br>Cheers<br>
</blockquote><br><br><span title="neteasefooter"></span></div><hr>
<a href="http://ym.163.com/?from=od3" target="_blank">网易为中小企业免费提供企业邮箱（自主域名）</a>
</blockquote></div><br>