Is it possible to check if the caps lock button is active while typing in form ?

Question

I was wondering if it was possible to know if the caps lock button is active while filling a web form ?

Sometimes, when you are asked to enter your password, softwares notice you that's active, and you be careful.

I would have liked to do the same in web forms.

Any ideas ?

Answer 1

Take a look at this link: http://www.csua.berkeley.edu/~jgwang/capslock.htm

Answer 2

http://jdstiles.com/java/checkforcaps.html

Answer 3

Accessing user setting like that would be against any decent security model, however you could check for whether the user has entered ALL_CAPS or aLL_CAPS and warn appropriately.

An elegant work-around can be found here: http://24ways.org/2007/capturing-caps-lock

Sadly, there’s no way of actually detecting whether Caps Lock is on directly. However, there’s a simple work-around; if the user presses a key, and it’s a capital letter, and they don’t have the Shift key depressed, why then they must have Caps Lock on! Simple.

Answer 4

Well i finally found exactly what i was looking for.

Here is a demo.

Here is the snippet.

Tested with IE7, Mozilla Firefox, Opera, Safari.