highlight-cursor.ahk

Size := 25, Color := "Red"
CoordMode, mouse, screen
Gui, -Caption +ToolWindow +AlwaysOnTop +LastFound
Gui, Color, %Color%
GuiHwnd := WinExist()
DetectHiddenWindows, On
WinSet, Transparent, 100, ahk_id %GuiHwnd%
WinSet, Region, % "0-0 W" Size " H" Size " E", ahk_id %GuiHwnd%
WinSet, ExStyle, +0x20, ahk_id %GuiHwnd%
Gui, Show, w%Size% h%Size% hide
Return

~LButton::
MouseGetPos, MouseX, MouseY
posX := Round(MouseX - Size/2), posY := Round(MouseY - Size/2)
Gui, Show, x%posX% y%posY% NA
Return

Esc::ExitApp