gui adjustments

anyone knows of a to date function UDF that will help adjusting the gui to scale correctly with labels, font sizes.. (for different desktops/dpi)
 
I found this topic
http://www.autoitscript.com/forum/topic/93974-fontgui-resizing/#entry675142

I tried to run it with the example but it errors in scite :

$hDC = DllCall("user32.dll", "long", "ReleaseDC", "long", $hWnd, "long", $hDC)

(56) : ==> Variable used without being declared.:

and it seems to be declared 

Thanks