using tcltk in R under ESS/XEmacs on Windows

[John Fox]

Dear Andy,

I've taken the liberty of copying this reply to the r-help and ess-help
lists since my last reply was misleading.

I believe that the problem with tkchooseDirectory() (you can see it by just
calling that function directly) is that it brings up a native Windows
dialog, and it's that kind of tcltk command that I've had trouble with in
ESS/XEmacs under Windows.

Regards,
 John

> -----Original Message-----
> From: Liaw, Andy [mailto:andy_liaw at merck.com] 
> Sent: Friday, September 24, 2004 3:23 PM
> To: 'John Fox'
> Subject: RE: using tcltk in R under ESS/XEmacs on Windows
> 
> Hi John,
> 
> demo(tkfaq) did work for me.  Maybe that's the exception...
> 
> Thanks!
> Andy
> 
> > From: John Fox
> > 
> > Dear Andy,
> > 
> > Perhaps it's possible, but I've never been able to get 
> tcltk to work 
> > properly under ESS/Xemacs on Windows.
> > 
> > Regards,
> >  John
> > 
> > > -----Original Message-----
> > > From: ess-help-bounces at stat.math.ethz.ch
> > > [mailto:ess-help-bounces at stat.math.ethz.ch] On Behalf Of 
> Liaw, Andy
> > > Sent: Friday, September 24, 2004 3:03 PM
> > > To: r-help at stat.math.ethz.ch; ESS (Help list)
> > > Subject: using tcltk in R under ESS/XEmacs on Windows
> > > 
> > > Sorry for the cross-post.  Not sure where the problem is...
> > > 
> > > A while back I posted an R function to R-help:
> > > 
> > > cd <- function (dir = tclvalue(tkchooseDirectory()),
> > saveOld = FALSE,
> > >     loadNew = TRUE) {
> > >     stopifnot(require(tcltk))
> > >     if (saveOld) 
> > >         save.image(compress = TRUE)
> > >     setwd(dir)
> > >     rm(list = ls(all = TRUE, envir = .GlobalEnv), envir =
> > .GlobalEnv)
> > >     if (loadNew && file.exists(".RData")) {
> > >         loaded <- load(".RData", envir = .GlobalEnv)
> > >         return(invisible(loaded))
> > >     }
> > > 
> > > where the default value for the `dir' argument is to run 
> the tcltk 
> > > directory chooser and get the directory name chosen.
> > > (Thanks to Prof. John Fox for the tcltk part!!)  While 
> this function 
> > > works fine under Rgui on Windows, it doesn't work when running R 
> > > within ESS (5.2.3) and XEmacs (21.4.13).  The directory chooser 
> > > never shows up, and dir just gets the empty string.  Does anyone 
> > > have any idea what could be the problem?
> > >  I'd very much appreciate any pointers.
> > > 
> > > Best,
> > > Andy
> > > 
> > > ______________________________________________
> > > ESS-help at stat.math.ethz.ch mailing list 
> > > https://stat.ethz.ch/mailman/listinfo/ess-help
> > 
> > 
> > 
> 
> 
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