If you set the GUI background colour with GUISetBkColor() and happen to forget the colour you set it as, then why not try GUIGetBkColor() Function: #include-once
#include <WinAPIGdi.au3>
; #FUNCTION# ====================================================================================================================
; Name ..........: GUIGetBkColor
; Description ...: Retrieves the RGB value of the GUI background.
; Syntax ........: GUIGetBkColor($hWnd)
; Parameters ....: $hWnd
