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I use synergy for sharing keyboard/mouse on my mac/pc.

I need to switch the alt(option) key mapping to meta, and I need some tool if this works.

What kind of tool is used for checking the key code that is send when I hit the key?

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up vote 1 down vote accepted

You can simply create a HTML to do so.

  1. Copy & paste the following code into a new HTML file, say keycode.html.
  2. Open it with a browser.
  3. Press a key. A prompt with key code would appear.


document.onkeydown = function(e) {
    if (!e) var e = window.event;
    if (e.keyCode) keycode = e.keyCode;
    else if (e.which) keycode = e.which;

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I'm struggling with exactly same case!

HTML checker by @wilson is working just fine with two little exceptions: it doesn't capture fn nor power (which actually what I want to make use of)

Found on the internet (using AutoHotKey)

; Mac keyboard to Windows Key Mappings

; 1) Swap Windows (Command) and Alt keys
; These button locations are reversed on Mac keyboards


; 2) Map F13 to Print screen
; Mac keyboards don't have a print-screen button!


(F13 in my case doesn't work, clipboard remains empty)

Maybe there is a way to read keycode and send it using these codes:

(my case is even more complicated as I'm using polish layout and there is another layer of complexity with diacritic marks)

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