An AutoHotKey script to switch to the next window of the currently active app (CTRL + TAB)

SwitchWindow.ahk

#Requires AutoHotkey v2.0

; Use Ctrl+Tab to switch between windows of the same application
global windowOrder := Map()

^Tab::
{
    ; Get the process name and ID of the active window
    processName := WinGetProcessName("A")
    pid := WinGetPID("A")

    ; Get a list of all windows for the current process
    if (processName == "explorer.exe")
    {
        windows := WinGetList("ahk_class CabinetWClass")
    }
    else
    {
        windows := WinGetList("ahk_pid " pid)
    }

    if windows.Length = 0
        return

    ; Get the current window ID
    currentWindowID := WinExist("A")

    ; Initialize or update the window order for this process
    if !windowOrder.Has(pid) || windowOrder[pid].Length != windows.Length
    {
        windowOrder[pid] := windows
    }

    ; Find the index of the current window in the order
    currentIndex := 0
    for index, winId in windowOrder[pid]
    {
        if winId = currentWindowID
        {
            currentIndex := index
            break
        }
    }

    ; Calculate the next window index
    nextIndex := currentIndex + 1
    if nextIndex > windowOrder[pid].Length
        nextIndex := 1

    ; Activate the next window
    WinActivate(windowOrder[pid][nextIndex])
}