[ferget]

можно, вот пример

Код:

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

#NoTrayIcon 

Local $Button1, $msg, $Gui
$Gui=GUICreate("Test Button")

Opt("GUICoordMode", 2)
$Button1 = GUICtrlCreateButton("Test", 10, 20, 120)
GUICtrlSetBkColor(-1, 0x0)
GUICtrlSetColor(-1, 0xFFFFFF)

GUISetState()

While 1
    $msg = GUIGetMsg()
    Switch $msg
        Case $GUI_EVENT_CLOSE
            ExitLoop
        Case $Button1
            OKPressed()
    EndSwitch
WEnd

Func OKPressed()
 MsgBox(4096,"", "Ok pressed")
EndFunc