AHK: Как задать SendMessage при активности определенного окна?

    SetTitleMatchMode 2
    DetectHiddenWindows On
    SendMode Input
    SetKeyDelay -1

END::
Reload
return

    { ; AutoSwitch Input Method
        #Persistent
    Global list := {"AIMP3.exe":"ru", "SciTE.exe":"en"}

    SetWinEventHook(EVENT_SYSTEM_FOREGROUND := 0x0003, EVENT_SYSTEM_FOREGROUND, 0, RegisterCallback("HookProc", "F"), 0, 0, 0) 

    HookProc(hWinEventHook, event, hwnd)  { 
        WinGet, Process, ProcessName, ahk_id %hwnd%
        If (list.haskey(Process))  { 
            ControlGetFocus, CtrlFocus, ahk_id %hwnd%
            PostMessage, WM_INPUTLANGCHANGEREQUEST := 0x50, , {"en":0x409,"ru":0x419}[list[Process]], %CtrlFocus%, ahk_id %hwnd%
        } 
}

    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)
    }
    }
    { ~^+C:: ; Google Search
        SendMessage, 0x50, , 0x4090409, , A
        IfWinNotActive, Vegas Pro 13.0
            {
                SendInput, ^c
                Sleep 50
                Run, http://www.google.com/search?q=%clipboard%
            }
        return
    }