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
1
> tclvalue("myvar")# Read its value
[1] "1"
To make sure you create global varia
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
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