Help me with Method Entry of Gtk

I’m a Ruby N. trying to do a App, where user log on, when the users
will write their password only show *, I’ve been used invisible_char but
when compiled it, I shows a error

set_invisible_char’: wrong number of arguments (0 for 1) (ArgumentError)

I was missing an Argument but I don’t what it is, the rest of code is
this

entrypassword = Gtk::Entry.new
entrypassword.set_invisible_char

Thank you for Attention

On Dec 15, 2012, at 9:54 PM, Alejandro H. [email protected]
wrote:

entrypassword.set_invisible_char

Thank you for Attention

Google: ruby Gtk set_invisible_char

One of the early hits:
http://ruby-gnome2.sourceforge.jp/ja/hiki.cgi?Gtk%3A%3AEntry

And from there:
http://ruby-gnome2.sourceforge.jp/ja/hiki.cgi?Gtk%3A%3AEntry#set_invisible_char

set_invisible_char(ch)
Same as Gtk::Entry#invisible_char=
ch: a Unicode character(Number)
Returns: self

invisible_char=(ch)
Sets the character to use in place of the actual text when
Gtk::Entry#visibility= has been called to set text visibility to false.
i.e. this is the character used in “password mode” to show the user how
many characters have been typed. The default invisible char is an
asterisk (’*’). If you set the invisible char to 0, then the user will
get no feedback at all; there will be no text on the screen as they
type.
ch: a Unicode character(Number)
Returns: ch

Not that hard, is it?

Thank you, Gennady B.

the correct code is this

entrypassword = Gtk::Entry.new
entrypassword.set_visibility(false)

Thank you very much

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