invisible_char

Description:

[ Version ( since = "2.18" ) ]
public uint invisible_char { get; set; }

The invisible character is used when masking entry contents (in \"password mode\")").

When it is not explicitly set with the invisible_char property, GTK+ determines the character to use from a list of possible candidates, depending on availability in the current font.

This style property allows the theme to prepend a character to the list of candidates.