AutoHotKey script to open PureRef

PureRef.ahk

#NoEnv  ; Recommended for performance and compatibility with future AutoHotkey releases.
SetWorkingDir %A_ScriptDir%  ; Ensures a consistent starting directory.
SendMode Input  ; Recommended for new scripts due to its superior speed and reliability.

; Global variable to store the ID of the window that was active before PureRef
global lastActiveWindow := 0

#Up::  ; REPLACE WITH HOTKEY OF CHOICE
IfWinExist, ahk_exe PureRef.exe
{
    WinGet, pureRefState, MinMax, ahk_exe PureRef.exe
    
    if (pureRefState == -1)  ; If PureRef is minimized
    {
        WinRestore, ahk_exe PureRef.exe
        WinActivate, ahk_exe PureRef.exe
        lastActiveWindow := 0  ; Reset lastActiveWindow
    }
    else
    {
        IfWinActive, ahk_exe PureRef.exe
        {
            WinMinimize, ahk_exe PureRef.exe
            AttemptToActivateLastWindow()
        }
        else
        {
            WinGetActiveTitle, activeWindow
            lastActiveWindow := WinExist(activeWindow)
            WinActivate, ahk_exe PureRef.exe
        }
    }
}
else
{
    Run, C:\Program Files\PureRef\PureRef.exe  ; Replace with the actual path to PureRef
}
return

AttemptToActivateLastWindow()
{
    if (lastActiveWindow != 0 && WinExist("ahk_id " . lastActiveWindow))
    {
        WinActivate, ahk_id %lastActiveWindow%
    }
    else
    {
        ; First fallback: Try to activate any window other than PureRef
        WinGet, activeList, List,,, Program Manager
        Loop, %activeList%
        {
            id := activeList%A_Index%
            WinGetTitle, title, ahk_id %id%
            WinGet, processName, ProcessName, ahk_id %id%
            if (processName != "PureRef.exe" && title != "")
            {
                WinActivate, ahk_id %id%
                return
            }
        }
        
        ; Second fallback: If no other windows, show desktop
        Send, #d
    }
}