How to dispose non alphanumeric key into a string?

Hi all

To start an application I developed, I would like the user to write his or her password in the first round table, but I want that whenever the user must type a character in the control of the chain Hide_Password (see photo), it is automatically converted to a "." to hide the password. The real password is saved in a second chain of control. It's actually my vi made using a key event upward. But now I want to avoid any nonalphanumeric character to be enter the password, especially I don't want that the user can press the menu like , , , , and

You have an idea?

Also, if you think that there is something wrong in my vi, please let me know.

Thank you

Philippe

You can also use the control key chain down? event and throw the event when the ascii char do not match one alphanumeric character.

Ben64

Tags: NI Software

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