Ralf Fassel wrote:

> ...I think the TCL-idiom to prevent
> windows/applications being destroyed by the decoration buttons is to
> use the `wm' command, like this:
>
>   wm protocol {.} WM_DELETE_WINDOW my_deletion_prevention_routine
>
> Binding to the `destroy' event is too late, things have happened
> already when this triggers.  See the `wm' manpage for details.
> http://www.tcl.tk/man/tcl8.4/TkCmd/wm.htm

Great; that leads here:


 require 'tk'
 top = TkRoot.new()
 canvas = TkCanvas.new(top) {width(400);height(300) }
 TkcText.new(canvas, 100, 200) { text 'hello world' }
 canvas.grid

 top.protocol('WM_DELETE_WINDOW', proc{puts 'huh?'})

 Tk.mainloop
 canvas = TkCanvas.new() {width(400); height(300)  }
 TkcText.new(canvas, 200, 100) { text 'hello world' }
 canvas.grid
 Tk.mainloop


But what's "my_deletion_prevention_routine"? The documentation lists several
"Tk.quit" and "callback_break" routines. Tk.quit does not seem to exist (in
Ruby), and callback_break creates the error "Tk callback returns 'break'
status"

--
  Phlip
    http://www.c2.com/cgi/wiki?TestFirstUserInterfaces