[Rd] R's X11 Device Properties

Prof Brian Ripley ripley at stats.ox.ac.uk
Tue Feb 2 07:11:52 CET 2010

On Mon, 1 Feb 2010, Erik Iverson wrote:

> Hello,
> This is an issue that is at the interface of R, X, and my window manager 
> (either icewm or openbox, both latest versions).  I am running R 2.10.1 on 
> Ubuntu 9.10.
> My goal: When an X11 device is started in R (e.g., by simply calling plot), I 
> would like for the resulting window to be in the "always on top" state, and 
> for focus not to switch to it.
> Configuring this behavior is handled through the window manager, but both of 
> the above referenced window managers require that the first element of 
> window's WM_CLASS property, second element of window's WM_CLASS property, or 
> the window's WM_WINDOW_ROLE property be set so that the right window can be 
> matched.
> If I start R, type
>> plot(1,1)
> and then run "xprop" (command line program to inspect X window properties) on 
> the resulting X11 window, none of these properties show up in the resulting 
> output.
> Is there any hope for this to change?  I did notice in ?X11 that "The 
> standard X11 resource geometry can be used to specify the window position 
> and/or size, but will be overridden by values specified as arguments or 
> non-NA defaults set in X11.options. The class looked for is R_x11."

But the WM_CLASS is not set.


shows how you could prepare a patch.  As so often with window manager 
issues, we need someone who uses that WM and wants the feature to try 
it out.

> This "R_x11" class works fine for setting the geometry in .Xresources, but it 
> does not seem to be the same "class" as WM_CLASS referenced above.

It is not.

> Unfortunately, this is about as far as my knowledge of X goes, so hopefully 
> this makes sense. If anyone has any pointers, they would be welcome. Thank 
> you!
> Best Regards,
> Erik Iverson
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Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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