Although this simple solution has 2 problems, you can find way like :
- You can prevent copy&paste to use follow code in TextBox’s KeyDown event handler.
if ((Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control)
(sender as TextBox).Select(0, 0);)
- You can make password.ttf to support your language’s characters.
(but it may not regconize upper/lower case.)

I agree, but, if you are writting your password it means you know it. Then I guess you won’t steal your own password by copying/pasting it.
In my opinion masking with stars is only a security for curious guys who might see your screen…

You solution seems to be cool, but only seems… :)
In fact, because you are using a custom font, the content of the textbox isn’t masked and you can get its content with a simple copy/paste, which isn’t very secure.
By the way, I think that writing a new TextBox with different input mode is really much sexy and secure.

looking cool solution man………….
but need to ask one thing can i use this font in my application without any issue….
Is that font file is open to used by anybody?
or any issue about copyright there………

Thanx in advance….

keep up the great job.