[R] Question regarding QT device

Prof Brian Ripley ripley at stats.ox.ac.uk
Sun Aug 5 19:35:21 CEST 2007


grDevices::deviceIsInteractive is only in the unreleased R-devel version 
of R: which version are you using?

Please do study the R posting guide: we do ask for basic information for a 
good reason, and do ask for questions on packages (especially unreleased 
packages) to be sent to the maintainer.


On Sun, 5 Aug 2007, Saptarshi Guha wrote:

> Hi,
> 	After a few modifications in the makefiles, I successfully compiled
> the Qt device (written by Deepayan Sirkar) for OS X 10.4.9 on a
> Powerbook.
> 	However when loading into R
>
> 	If i remove this line from zzz.R in qtutils/R
>
> grDevices::deviceIsInteractive("QT")
>
> 	and then install
> 	>library(qtutils)
>
> 	loads fine and the QT() calls returns a QT window, however, if i
> switch to another application and then switch back to the R GUI, the
> menubar has disappeared.
>
> 	If I do not remove the line
>
> grDevices::deviceIsInteractive("QT")
>
> 	the following error appears an qtutils does not load
> 	Error : 'deviceIsInteractive' is not an exported object from
> 'namespace:grDevices'
> 	Error : .onLoad failed in 'loadNamespace' for 'qtutils'
> 	Error: package/namespace load failed for 'qtutils'
>
> 	Could anyone provide some pointers to get that deviceIsInteractive
> to work?
>
> 	Thanks for your time
> 	Saptarshi
>
> Saptarshi Guha | sapsi at pobox.com | http://www.stat.purdue.edu/~sguha
>
>
> 	[[alternative HTML version deleted]]
>
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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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