#include <ButtonConstants.au3>
#include <EditConstants.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>

$Form1 = GUICreate("", 299, 66, 192, 124)
$Button1 = GUICtrlCreateButton("Prüfen", 8, 32, 283, 25, $WS_GROUP)
$Input1 = GUICtrlCreateInput("", 8, 8, 281, 21)
GUISetState(@SW_SHOW)




While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit
    Case $Button1
$read = GUICtrlRead($input1)
            MsgBox(0,"",$read)
    EndSwitch
WEnd