Highlight the active window

activeWindowHighlight.ahk

#Persistent
SetTitleMatchMode, 2
SetTitleMatchMode, Fast

SetTimer, DrawRect, 50
border_thickness = 5
Table_String = Table

DrawRect:
WinGetTitle, title, A
WinGetPos, x, y, w, h, A
if x || x = 0 
{
Gui, +Lastfound +AlwaysOnTop +Toolwindow
t:= border_thickness
iw:= w ; border_thickness 
ih:= h ; border_thickness 
ow:= w + ( border_thickness)
oh:= h + ( border_thickness)
ox:= x - (0.5 * border_thickness)
oy:= y - (0.5 * border_thickness)
Gui, Color, FF0000
Gui, -Caption
WinSet, Region, 0-0 %ow%-0 %ow%-%oh% 0-%oh% 0-0 %t%-%t% %iw%-%t% %iw%-%ih% %t%-%ih% %t%-%t% 
Gui, Show, w%ow% h%oh% x%ox% y%oy% NoActivate, Table
}
return