Key Codes 2.2.1 requiresmacOS 10.9 Mavericks or newer.
Also available on theMac App Store.
For the nostalgically inclined,older versions are here.
Key Codes is a little utility that displays the key code, unicode value, and modifier keys state for any key combination you press. If you're a developer, this might be useful to you.
Key Codes 2.2.1 requires macOS 10.9 Mavericks or newer. The release notes are an interesting read.
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