I made this little tool to measure things when testing GUI's 'n stuff it's resizable and transparent. there's also a optional tooltip with all infos. and you can toggle on/off for the compiled version with icon: see attached file screenie: and the source: CODE#include <GUIConstants.au3>AutoItSetOption("GUIResizeMode",802) Global $oldwidth = 500, $oldheight = 100, $ontop = 1 $main = GUICreate("Pangaea_Ruler",500,100,-1,-1,$WS_POPUP + $WS_SIZEBOX) GUICtrlCreateLabel("",28,28,32,20,$S