Windows R-3.0.0 and Tcl/tkrplot issue

Greetings R Developers,

I've been testing the alpha release of R-3.0.0 and I noticed that the plotting functionality in package tkrplot was not working correctly.
Further diagnosis found the issue to be related to the command '.Tcl("image create Rplot plotname")' from package "tkrplot".

The following example is  taken from here:  http://tkrplot.sourcearchive.com/documentation/0.0.14/tcltkimg_8c_source.html

library(tkrplot)
library(tcltk)
my.tkdev <- function() win.metafile(width=4,height=4)
my.tkdev()
plot(1:20)
.Tcl("image create Rplot fred")

Error in structure(.External(.C_dotTcl, ...), class = "tclObj") :
   [tcl] can't get device image.

This example works fine in R-2.15.3.  I've emailed the package maintainer Luke Tierney but unfortunately he doesn't have the ability to build and test packages on windows.
Can anyone elucidate what tcltk changes have been made in moving to R-3.0.0?

Details of installation are as follows:

version

platform       i386-w64-mingw32
arch           i386
os             mingw32
system         i386, mingw32
status         alpha
major          3
minor          0.0
year           2013
month          03
day            16
svn rev        62282
language       R
version.string R version 3.0.0 alpha (2013-03-16 r62282)
nickname       Unsuffered Consequences

Thanks,

Wayne

----------------------------------------------------------------------------------------
Wayne Jones
Statistics & Chemometrics
Shell Global Solutions (UK)
Shell Technology Centre Thornton
P.O. Box 1, Chester CH1 3SH, United Kingdom
Tel: +44 (0) 151 373 5977 Mobile: +44 (0) 7896 536026
Email: Wayne.W.Jones at shell.com<mailto:Wayne.W.Jones at shell.com>
Intranet: Statistics and Chemometrics - Shell Wiki<http://sww.wiki.shell.com/wiki/index.php/Statistics_and_Chemometrics>
Internet: Shell Global Solutions<http://www.shell.com/home/content/globalsolutions>

Shell Global Solutions (UK) is a division of Shell Research Limited which has its Registered Office at Shell Centre, London SE1 7NA and is registered in England & Wales with No.539964.


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