Where could I find a small Windows utility to show the current status of the Ctrl, Shift and Alt keys? Something that lives in the system tray or otherwise "always on top"? Just little "lights" to say "Ctrl is pressed!"
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THIS looks so good, unfortunately only in Linux :) http://code.google.com/p/key-mon/ – Feb 28 '10 at 21:52
3 Answers
Done:
http://svn.lando.us/joey/Public/SO/SU114626
Used the low-level keyboard hook code by Stephen Taub. May contain bugs, malfunctions and other weird things. May eat babies without prior warning. Right-click to close.
Feel free to use or adapt the code as you see fit.
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@Chris: Well, not the prettiest one and sorta hacked together but at least it works :) I thought about a notification icon but I wasn't able to cram the strings »Ctrl«, »Alt« and »Shift« into a 16×16 px² image and three notification icons were a little too much, I thought. Anyway, should be trivial to adapt if the need arises :) – Joey Mar 01 '10 at 19:08
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While waiting for Joey to fix his link, I made another one. Download the executable (and code) here: https://github.com/BobVul/KeyStatus/releases
It uses basically the same method as Joey's, and supports the Windows key. The display is a little much bigger.

Do whatever you want, no warranty, yadda yadda yadda
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1@ReversedEngineer Oops, you might be the first to notice since GitHub got rid of the downloads section! Updated with a fresh build, but this is rather old code so I'm not sure how reliable it will be into the future. – Bob Feb 17 '23 at 10:12
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Thank you, @Bob, got it and it seems to work just fine on Windows 10 22H2 – Reversed Engineer Mar 03 '23 at 06:52
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Windows on-screen keyboard fits your "always on top" and "small Windows utility" criteria. Each time Caps Lock or a modifier key is pressed it'll be highlighted on the on-screen keyboard. It's built-in so you don't need a 3rd party app.
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