Re: [R] Return Value of TCl/Tk window in R

From: Alberto Monteiro <albmont_at_centroin.com.br>
Date: Fri, 28 Dec 2007 09:56:01 -0200

Richard Müller wrote:
>
> I have the TCl/Tk command
> "tkmessageBox(titel="",message="x",icon="question",type="okcancel")"
> in my R script. Now I want to perform some operation in relation to
> the user's choice, something like "if (okpressed) xxx else yyy" What
> values does this command give and how are they used?
>
Why don't you test it yourself?

library(tcltk)
x <- tkmessageBox(title="",message="x",icon="question",type="okcancel") # press x or cancel
x
# <Tcl> ok or <Tcl> cancel

To get back from this Tcl-thing to an R-string, use

y <- tclvalue(x)

Alberto Monteiro



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