Hello, everyone.

I have the following problem with TclTk: I create some windows and want to
change their position with geometry manage (sometimes they will be centered,
sometimes not).
If the toplevel is created and its dimensions are gathered via 'tkwinfo', I
get (usually) correct values. However, if this window is created by a
function (in the following example, by 'ask.format') and this function is
called by another function ('inputDialog', as follows), I always get the
value '1' for width and height.

Provided below is quite detailed code, containing pretty much my entire
functions, except the parts not related to TclTk.

Thank you in advance,
Gabriel Margarido.

CODE:

library(tcltk)

ask.format <- function() {
  ask.form <- tktoplevel()
  tkgrab.set(ask.form)
  tkfocus(ask.form)
  tkwm.title(ask.form,"Input Format")
  tkwm.resizable(ask.form, 0, 0)

  file.format <- tclVar("1")
  ReturnFormat <- "ID_CANCEL"

  Title.frame <- tkframe(ask.form, relief="groove")
  tkgrid(tklabel(Title.frame,text="Input File Format", font="Times 15",
foreground="dark red"))
  tkgrid(Title.frame)

  Choose.frame <- tkframe(ask.form, relief="groove", borderwidth=2)
  file.format1 <- tkradiobutton(Choose.frame)
  file.format2 <- tkradiobutton(Choose.frame)
  tkconfigure(file.format1, variable=file.format, value="1")
  tkconfigure(file.format2, variable=file.format, value="2")
  tkgrid(tklabel(Choose.frame, text="Format 1 "),file.format1)
  tkgrid(tklabel(Choose.frame, text="Format 2 "),file.format2)
  tkgrid(Choose.frame)

  onOK <- function() {
    ReturnFormat <<- tclvalue(file.format)
    tkgrab.release(ask.form)
    tkdestroy(ask.form)
  }
  onCancel <- function() {
    tkgrab.release(ask.form)
    tkdestroy(ask.form)
  }

  Buttons.frame <- tkframe(ask.form, relief="groove")
  OK.but <- tkbutton(Buttons.frame, text = " OK ", command = onOK)
  cancel.but <- tkbutton(Buttons.frame, text = "Cancel", command = onCancel)
  tkgrid(cancel.but, OK.but, ipadx=20)
  tkgrid(Buttons.frame)


  print(as.integer(tclvalue(tkwinfo("height", ask.form))))


  tkbind(ask.form, "<Destroy>", function() onCancel)
  tkbind(ask.form, "<KeyPress-Return>", onOK)
  tkbind(ask.form, "<KeyPress-Escape>", onCancel)

  tkwait.window(ask.form)

  return(ReturnFormat)
}



inputDialog <- function() {
  input <- tktoplevel(background="white")
  tkgrab.set(input)
  tkfocus(input)
  tkwm.title(input, "Data Input")
  tkwm.resizable(input, 0, 0)

  OpenVal <- c(0,0)

  getfile <- function() {
### HERE I WOULD ALSO LOAD THE INPUT FILE, BUT THIS IS NOT RELEVANT
    inputformat <- ask.format()
    if (inputformat == "ID_CANCEL") return()
    OpenVal[1] <<- 1
    tkgrab.release(input)
    tkdestroy(input)
  }

  tkgrid(tklabel(input, text = "Choose an input
file",background="white",font="Times 13"),columnspan=3)
  button.file <- tkbutton(input, text = "Open Input Data File", command =
getfile)
  button.exit <- tkbutton(input, text = "Exit", command = function()
{tkdestroy(input); OpenVal[2] <<- 1})
  tkgrid(button.file, button.exit)

  tkfocus(input)
  tkbind(input, "<Destroy>", function() {tkgrab.release(input); OpenVal[2]
<<- 1})
  tkwait.window(input)

  return(OpenVal)
}

ask.format() ## this works, although with some variation in values
inputDialog() ## window size is always 1

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