AutoHotkey 2.0 Caps Lock to Escape and Control (Windows)

CapsLock-to-ESC-and-CTRL.ahk

#Requires AutoHotkey v2.0
#SingleInstance

; Caps Lock is ESC if tapped (pressed and quickly released).
; Caps Lock is CTRL if held down.
; Install AHK 2: https://www.autohotkey.com
; Create CapsLock-to-ESC-and-CTRL.ahk in Startup containing this code.
;   (File Explorer/Dialog > type in: Startup)
; Double-click to run
; Will auto-run next startup

global cDown := 0

; Hold down RIGHT CTRL and tap CAPS LOCK to toggle CapsLock
>^CapsLock::CapsLock

; CapsLock is pressed - send CTRL Down
CapsLock::
{
    Send "{Blind}{Ctrl Down}"
    global cDown := A_TickCount
}

; CapsLock is released - send CTRL Up.
; Also send ESCAPE if the press & release was quick enough.
CapsLock up::
{
    ; Modify the threshold time (in milliseconds) as necessary
    if ((A_TickCount-cDown) < 150)
    {
        Send "{Blind}{Ctrl Up}{Esc}"
    }
    else
    {
        Send "{Blind}{Ctrl Up}"
    }
}