"janet rosenbaum" <[EMAIL PROTECTED]> writes:
> 2. I also have a tcltk in R question.
>
> How do you use the command tkoptionmenu in R?
>
> The following are both valid syntax and both create the desired menu,
> but neither changes the variable fsep.
>
> septype.menu <- tkoptionmenu(septype,fsep, ",",";", ".", "\t", " ", "")
> septype.menu <- tkoptionmenu(septype,variable=fsep, ",",";", ".", "\t", " ", "")
>
> septype is the frame that optionmenu is placed in, and fsep is
> the variable whose value I want to change.
>
> I consulted with the tcltk documentation and none of their syntax or
> variations thereon works.
What tkoptionmenu command?? I don't see one
> ls("package:tcltk", pattern="enu")
[1] "tkmenu" "tkmenubutton"
Did you write one yourself, interfacing to tk_optionMenu? That's not
completely easy to get right. Or is there one in a contributed package?
In general "variable"-type arguments need to be objects of class
tclVar.
Something like this should work, but there are a few demons lurking
inside
tkoptionmenu <- function(...) tkcmd("tk_optionMenu", ...)
tt <- tktoplevel()
w <- .Tk.subwin(tt) # this is nasty! Is everything protected from GC??
fsep <- tclVar()
m <- tkoptionmenu(w, fsep, ",",";", ".", "\t", " ", "")
tkpack(w)
# select something
tclvalue(fsep)
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
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