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tldr/pages/common/qdbus.md

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qdbus

Inter-Process Communication (IPC) and Remote Procedure Calling (RPC) mechanism originally developed for Linux. More information: https://doc.qt.io/qt-5/qtdbus-index.html.

  • List available service names:

qdbus

  • List object paths for a specific service:

qdbus {{service_name}}

  • List methods, signals and properties available on a specific object:

qdbus {{service_name}} {{/path/to/object}}

  • Execute a specific method passing arguments and display the returned value:

qdbus {{service_name}} {{/path/to/object}} {{method_name}} {{argument1}} {{argument2}}

  • Display the current brightness value in a KDE Plasma session:

qdbus {{org.kde.Solid.PowerManagement}} {{/org/kde/Solid/PowerManagement/Actions/BrightnessControl}} {{org.kde.Solid.PowerManagement.Actions.BrightnessControl.brightness}}

  • Set a specific brightness to a KDE Plasma session:

qdbus {{org.kde.Solid.PowerManagement}} {{/org/kde/Solid/PowerManagement/Actions/BrightnessControl}} {{org.kde.Solid.PowerManagement.Actions.BrightnessControl.setBrightness}} {{5000}}

  • Invoke volume up shortcut in a KDE Plasma session:

qdbus {{org.kde.kglobalaccel}} {{/component/kmix}} {{invokeShortcut}} "{{increase_volume}}"

  • Gracefully log out and then do nothing, reboot or shut down:

qdbus {{org.kde.Shutdown}} {{/Shutdown}} {{logout|logoutAndReboot|logoutAndShutdown}}