#include "GlobalEvents.au3"
#include <Misc.au3>

GUICreate("Test")
$hLabel = GUICtrlCreateLabel("", 0, 190, 400, 20, 1)
GUISetState()

; Set lower delay:
_GlobalEvents_SetDelay(100)
; Looping event:
_GlobalEvents_Create("_IsPressed('20')", SpacePressed, 2)
_GlobalEvents_Create("_IsPressed('20')=0", SpaceNotPressed, 2)

While GUIGetMsg() <>-3
	; here be code
WEnd

Func SpacePressed()
	DisplayMessage("Space is pressed (" & @SEC & ").")
EndFunc

Func SpaceNotPressed()
	DisplayMessage("Space is not pressed :(")
EndFunc

Func DisplayMessage($sText)
	If GUICtrlRead($hLabel) <> $sText Then GUICtrlSetData($hLabel, $sText)
EndFunc