Supercharged Win+{Up,Down} (AutoHotkey v2)

WinMinimize.ahk

#Requires AutoHotkey v2.0
#SingleInstance Force
#NoTrayIcon

MINIMIZED := []
STATE_MINIMIZED := -1

return

; Win + Shift + Down = Minimize Window
#+Down::
{
    global

    for index, winid in MINIMIZED
    {
        if (!WinExist(winid) || WinGetMinMax(winid) != STATE_MINIMIZED)
        {
            MINIMIZED.RemoveAt(index)
        }
    }

    if (hwnd := WinExist("A"))
    {
        winid := "ahk_id " hwnd

        if (WinGetMinMax(winid) != STATE_MINIMIZED)
        {
            PostMessage 0x0112, 0xF020, 0,, winid  ; 0x0112 = WM_SYSCOMMAND, 0xF020 = SC_MINIMIZE
            MINIMIZED.Push(winid)
        }
    }
}

; Win + Shift + Up = Restore Window
#+Up::
{
    global

    for index, winid in MINIMIZED
    {
        if (!WinExist(winid) || WinGetMinMax(winid) != STATE_MINIMIZED)
        {
            MINIMIZED.RemoveAt(index)
        }
    }

    if (MINIMIZED.Length)
    {
        winid := MINIMIZED.Pop()
        PostMessage 0x0112, 0xF120, 0,, winid  ; 0x0112 = WM_SYSCOMMAND, 0xF120 = SC_RESTORE
    }
}