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codemon

Member

From: India

Registered: 2009-12-08

Posts: 12

Website

[Solved] Desktop Zoom in KDE using dbus-send

Hi,

I am trying to use dbus to use the KDE zoom-in/out feature. I need this to assign mouse-based shortcuts as described here

Using dbus-monitor, I got the following output when pressing the default shortcut for KDE-zoom:

  signal sender=:1.5 -> dest=(null destination) serial=1152 path=/component/kwin; interface=org.kde.kglobalaccel.Component; member=globalShortcutPressed
   string "kwin"
   string "view_zoom_in"
   int64 30802948
method call sender=:1.5 -> dest=org.kde.knotify serial=1153 path=/Notify; interface=org.kde.KNotify; member=event
   string "globalshortcutpressed"
   string "kglobalaccel"
   array [
      variant          string "application"
      variant          string "KWin"
   ]
   string ""
   string "The global shortcut for Zoom &In was issued."
   array [
   ]
   array [
   ]
   int32 -1
   int64 0
method return sender=:1.11 -> dest=:1.5 reply_serial=1153
   int32 0

But I can't figure out how to use this info to actually send the zoom-in message with dbus-send. Can anyone help me with this?

Last edited by codemon (2010-10-13 05:45:58)

xvello

Member

Registered: 2010-05-15

Posts: 81

Website

Re: [Solved] Desktop Zoom in KDE using dbus-send

Hello

I recommend you use qdbusviewer to dig into dbus methods.
As far as I know, there is no dbus method in kwin to trigger the zoom. But, as you discovered, you can use kglobalaccel's invokeShortcut method to simulate a keypress. The resulting qdbus console call is :

> qdbus org.kde.kglobalaccel /component/kwin invokeShortcut "view_zoom_in"

Cheers

codemon

Member

From: India

Registered: 2009-12-08

Posts: 12

Website

Re: [Solved] Desktop Zoom in KDE using dbus-send

Thanks for the help! Works perfectly!

splashy

Member

Registered: 2010-08-21

Posts: 128

Re: [Solved] Desktop Zoom in KDE using dbus-send

So I resume:

yaourt -S xbindkeys

xbindkeys --defaults > $HOME/.xbindkeysrc

Then edit with your favorite text editor the file ~/.xbindkeysrc and add before the end those lines:

# Zoom in
"qdbus org.kde.kglobalaccel /component/kwin invokeShortcut "view_zoom_in""
  m:0x50 + c:133 + b:4

# Zoom out
"qdbus org.kde.kglobalaccel /component/kwin invokeShortcut "view_zoom_out""
  m:0x50 + c:133 + b:5

Restart xbindkeys to apply the new shortcut:

killall xbindkeys && xbindkeys

Now you can fully enjoy the zoom effect and add xbindkeys into Autostart kde systemsettings tab.
Enjoy^^.

P.S: the shortcut I used in those line is meta key + scroll up for zoom in and meta key + scroll down for the zoom out.

Last edited by splashy (2011-08-09 22:39:50)