IsPressed - PixelGetColor

; ispressed  - Spacebar
;  returns color of center of named window

#include <Misc.au3>
Local $hDLL = DllOpen("user32.dll")

While 1
    If _IsPressed("20", $hDLL) Then
        $hWnd = WinGetHandle("AutoIt Help")  ; change to your window
        $Pos = WinGetPos($hWnd)
        $Color = PixelGetColor($Pos[0] / 2, $Pos[1] / 2)

        MsgBox(0, "", $Pos[0] & "," & $Pos[1] & @CRLF & "0x" & Hex($Color, 6))

    EndIf
    Sleep(250)
WEnd

DllClose($hDLL)