AHK: Нажатие по элементам Notepad++ с помощью SendMessage/PostMessage

#IfWinActive ahk_class Notepad++
$F8:: WinExist("ahk_class Notepad++"), SwitchAreaInNotepad()
#If

SwitchAreaInNotepad()
{
   WinGet, ControlList, ControlList
   if !(pref := WeOrNs(ControlList))
      Return
   
   pos := GetSpliterPos(ControlList, pref)
   ControlGetPos, X, Y, W, H, %pref%spliter1
   if (pos = "D")
      x_click := X + 3, y_click := Y + H - 3
   if (pos = "R")
      x_click := X + W - 3, y_click := Y + 3
   if (pos = "U")
      x_click := X + 3, y_click := Y + 3
   if (pos = "L")
      x_click := X + 3, y_click := Y + H - 3
   
   ControlClick, X%x_click% Y%y_click%
   ControlFocus, % GetCurrentScintilla(ControlList, pref)
}

WeOrNs(List)
{
   for k, spliter in ["nsspliter1", "wespliter1"]  {
      if InStr(List, spliter)  {
         ControlGet, vis, Visible,, % spliter
         if vis
            Return SubStr(spliter, 1, 2)
      }
   }
}

GetSpliterPos(List, pref)
{
   Scintilla := GetCurrentScintilla(List, pref)
   if (pref = "we")
      coord1 := "X", coord2 := "W"
   else
      coord1 := "Y", coord2 := "H"
   
   ControlGetPos, X, Y, W, H, %pref%spliter1
   center := %coord1% + %coord2%//2
   ControlGetPos, X, Y, W, H, % Scintilla
   
   if (Abs(%coord1% - center) < Abs(%coord1% + %coord2% - center))
      Return (pref = "we") ? "D" : "R"
   else
      Return (pref = "we") ? "U" : "L"
}

GetCurrentScintilla(List, pref)
{
   coord := pref = "we" ? "W" : "H"
   CurrentScintilla := Scintilla1, CoordPrev := 0
   Loop, parse, List, `n
   {
      if InStr(A_LoopField, "Scintilla")  {
         ControlGet, vis, Visible,, % A_LoopField
         if vis  {
            ControlGetPos,,, W, H, % A_LoopField
            if (%coord% > CoordPrev)
               CoordPrev := %coord%, CurrentScintilla := A_LoopField
         }
      }
   }
   Return CurrentScintilla
}