void gtk_text_set_visibility ( GtkText* self, gboolean visible )
Sets whether the contents of the
GtkText are visible or not.
When visibility is set to
FALSE, characters are displayed
as the invisible char, and will also appear that way when
the text in the widget is copied to the clipboard.
By default, GTK picks the best invisible character available
in the current font, but it can be changed with
Note that you probably want to set
inform input methods about the purpose of this self,
in addition to setting visibility to