[openbox] What is the unit of the ResizeRelative actions?

[Wujek Srujek]

Hi. I have the following keybindings in my rc.xml:

<keybind key="W-Escape" chroot="true">
      <keybind key="Right">
        <action name="ResizeRelative">
          <right>50</right>
        </action>
      </keybind>
      <!-- and similar for Left, Up and Down -->
</keybind>

I can't wrap my head around how this works. What is the unit that I
specify? Is it pixels or % or maybe something else? At my computer a small
window grows by 400 pixels in width:

# the window is currently centralized
$ wmctrl -lxG | tail -n 1
0x024012a3  0 393  276  655  377  lxterminal.Lxterminal
# after ResizeRelative +50 right
$ wmctrl -lxG | tail -n 1
0x024012a3  0 393  276  1055 377  lxterminal.Lxterminalt

# centralize again
$ wmctrl -lxG | tail -n 1
0x0240279c  0 393  276  655  377  lxterminal.Lxterminal
# after ResizeRelative +50 left
$ wmctrl -lxG | tail -n 1
0x0240279c  0 -7   276  1055 377  lxterminal.Lxterminal

and by 750 pixels in height:

# centralized
$ wmctrl -lxG | tail -n 1
0x024028bb  0 393  276  655  377  lxterminal.Lxterminal
# ResizeRelative +50 bottom
rafal at studio ~ $ wmctrl -lxG | tail -n 1
0x024028bb  0 393  276  655  1127 lxterminal.Lxterminal

# centralized
$ wmctrl -lxG | tail -n 1
0x024029af  0 393  276  655  377  lxterminal.Lxterminal
# ResizeRelative +50 top
rafal at studio ~ $ wmctrl -lxG | tail -n 1
0x024029af  0 393  -474 655  1127 lxterminal.Lxterminal

I have similar bindings binding for moving the window, also by 50
somethings:

<keybind key="A-W-Escape" chroot="true">
      <keybind key="Right">
        <action name="MoveRelative">
          <x>50</x>
        </action>
      </keybind>
      ...
</keybind>

and this does move the window by 50 pixels in each direction (I won't paste
the wmctrl calls here, trust me on this one ;d).
My resolution is 1440x900 and I am on:

$ openbox --version
Openbox 3.5.0
...

What are the units that these parameters are specified in? And why are they
inconsistent? Or is it just something with my setup and I am doing things
wrong?

wujek
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