[R] tcl tk command function with arguments ??

[ilai]

On Fri, Feb 24, 2012 at 12:58 AM, Alexander <juschitz_alexander at yahoo.de> wrote:

> I would like to know if its possible to use a function with arguments as a
> command in tcl tk.

Yes

<snip>
 I think
> this is due to the fact that the PressedOK(3) was the last call of the
> function, but I don't understand why all the other buttons have now a
> different command. Any idea?
>

Because in for loop i is overwritten every time - as you said i=3 is
the last command.
Replacing for with sapply should fix it:

require(tcltk)
OK.but <- NULL
PressedOK <- function(i)
{
   tkmessageBox(message=paste("You pressed OK!",i,sep=""))
}

tt <- tktoplevel()
sapply(1:3,function(i){
  OK.but[[i]] <- tkbutton(tt,text="OK",command=function()PressedOK(i))
  tkgrid(OK.but[[i]])
})
tkfocus(tt)

Cheers,
Elai


> Thanks
>
>
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