[Freetype] Special one-char font?

[Pedriana, Paul]

I want to implement a text edit control for a custom GUI platform that

displays only '*' characters when drawing text. That way, a password

input can be implemented much more easily. Is there a way to create

a TrueType (or similar) font that has only one characterand all requests

for any character always return that same character? This font must

cover all of Unicode, so I can't just replicate the character in FontLab.

 

The only other alternative I can think of is to have some kind of shim

or new driver that sits between my API and FreeType, but that wouldn't

be convenient when just making a special font would solve everything.

 

Any answers?

 

Paul