From: Hidetoshi NAGAI <nagai@...>
Date: 2005-06-23T12:37:56+09:00
Subject: Re: TkEntry problem to echo TkEntry value

From: sujeet kumar <sujeetkr@gmail.com>
Subject: TkEntry problem to echo TkEntry value
Date: Thu, 23 Jun 2005 01:13:31 +0900
Message-ID: <734fb92405062209137e4bc0e7@mail.gmail.com>
>   I want to take some data( given by user from) from TkEntry . But I
> also want data to be not seen by other. So i want whatever he types in
> TkEntry, some echo character like " * " prints instead of original
> letters. And program can use that data.

Please read man pages of Tcl/Tk. :-)
For example, the manual of "entry" describes 
--------------------------------------------------------------
 Command-Line Name:-show
 Database Name:  show
 Database Class: Show

        If this option is specified, then the true contents
        of  the  entry  are  not  displayed  in the window.
        Instead, each character in the entry's  value  will
        be displayed as the first character in the value of
        this option, such as ``*''.  This  is  useful,  for
        example,  if  the  entry  is  to be used to enter a
        password.  If characters in the entry are  selected
        and  copied  elsewhere, the information copied will
        be what is displayed, not the true contents of  the
        entry.
--------------------------------------------------------------
If you want to use this option on Ruby/Tk, 
you have to use "show" option which is a name removed the 
head '-' of "Command-Line Name".
For example, 
  e = TkEntry.new(f, :show=>'x') or e = TkEntry.new(f, 'show'=>'x')
  e.show('*')
  e[:show] = '-' or e['show'] = '-'
  e.configure(:show=>'o') or e.configure('show'=>'o')
and so on.
-- 
Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)