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

GUICreate("Test", 500, 500)
GUISetState(@SW_SHOW)

$write0Button = GUICtrlCreateButton ("Write 0", 10, 10, 100, 100 )

While 1
   $nMsg = GUIGetMsg()
   Select
	  case $nMSG = $write0Button
		 MsgBox($MB_OK, "ASJDKLN", "DONE")
	  Case $nMSG = $GUI_EVENT_CLOSE
		 ExitLoop

   EndSelect
WEnd