AHK: AlwaysOnTop внутри Родителя

DetectHiddenWindows, On
Gui, Main: +HwndmainGuiId  
Gui, Main: +LastFound  
Gui, Main: Show, w600 h150 
Gui, Child2: +ParentMain +HwndchildGuiId2 +AlwaysOnTop
Gui, Child2: Add, Text,,this is child gui
Gui, Child2: Show, x100 y0 w300 h100, Child GUI 2
Run, Notepad,, Hide
WinWait, ahk_class Notepad
Global External := WinExist("ahk_class Notepad"), childGuiID2
DllCall("SetParent", "uint", External, "uint", mainGuiId) 
WinMove, ahk_id %External%, , 0,0 
WinShow, ahk_id %External%
WinSet, Top, , ahk_id %childGuiID2%
Gui, Main: Show
SetWinEventHook(0x8005, 0x8005, 0, RegisterCallback("MyFunc", "F"),0,0,0) 
; 0x8005 = EVENT_OBJECT_FOCUS  
return

MyFunc(hWinEventHook, event, hwnd) { 
    If (hwnd = External) 
        WinSet, Top, , ahk_id %childGuiID2%   
}

SetWinEventHook(eventMin, eventMax, hmodWinEventProc, lpfnWinEventProc, idProcess, idThread, dwFlags)
{
   return DllCall("SetWinEventHook" , UInt, eventMin, UInt, eventMax
                                    , Ptr, hmodWinEventProc, Ptr, lpfnWinEventProc
                                    , UInt, idProcess, UInt, idThread
                                    , UInt, dwFlags, Ptr)
}

If !WinExist("ahk_class Notepad")  
{
    Run, Notepad,,, PID
    WinWait, ahk_pid %PID%
}
hNotepad := WinExist("ahk_class Notepad")
ControlGet, hEdit1, Hwnd, , Edit1, ahk_id %hNotepad% 
Gui, Add, Edit, w111 h111 x111 y111 HWNDh_Edit, Edit
DllCall("SetParent", "uint", h_Edit, "uint", hEdit1)   
WinActivate
Return

If !WinExist("ahk_class Notepad")  
{
    Run, Notepad,,, PID
    WinWait, ahk_pid %PID%
}
hNotepad := WinExist("ahk_class Notepad")
ControlGet, hEdit1, Hwnd, , Edit1, ahk_id %hNotepad%  
Gui, +AlwaysOnTop -DPIScale +HWNDhWin +ReSize
Gui, Add, Edit, w222 h222 x1 y1  
DllCall("SetParent", "uint", hWin, "uint", hEdit1)   
Gui, Show, na w222 h222 x111 y111, % " "
WinActivate 
Return

Gui, +0x40000000 -0x80000000  ; Add WS_CHILD, remove WS_POPUP