Read ?tclvalue.
For instance, you can do:
> tclvalue("tcl_library") # Read the content of a Tcl variable
[1] "/usr/local/lib/tcl8.4"
> .Tcl("set myvar 1") # Create a variable inside Tcl
<Tcl> 1
> tclvalue("myvar") # Read its value
[1] "1"
To make sure you create global variables in Tcl, start their names with
'::', like '::myglobalvar', if you like.
Best,
Philippe Grosjean
Handayani Situmorang wrote:
> I have any problem with my code. I build a small GUI in R with tcltk
> package. the proolem is I don't understand how to make a variable value can
> be read by R from a function. the variable value can only read if it's called
> via tcltk widgets and pass it to another function. i think the point is the
> variable must be set as global variable. but i don't have any idea? is anyone
> can help me, please? Thank you very much.
>
>
> ---------------------------------
> Bergabunglah dengan orang-orang yang berwawasan, di bidang Anda di Yahoo!
> Answers
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