[beve]

можно на это время отключить кнопки так:

Код:

#include <GUIConstantsEx.au3>
Opt("GUIOnEventMode", 1)
$mainwindow = GUICreate("Программа2", 460, 340)
GUISetOnEvent($GUI_EVENT_CLOSE, "CLOSEClicked")
$okbutton = GUICtrlCreateButton("Ok", 5, 30, 90)
GUICtrlSetOnEvent($okbutton, "OKButton")

$1button = GUICtrlCreateButton("1", 5, 60, 90)
GUICtrlSetOnEvent($1button, "_1Button")

$2button = GUICtrlCreateButton("2", 5, 90, 90)
GUICtrlSetOnEvent($2button, "_2Button")

GUISwitch($mainwindow)
GUISetState(@SW_SHOW)

While 1
Sleep(100)
WEnd

Func OKButton()
MsgBox(0,"","нажата кнопка OK",1)
ControlDisable($mainwindow,"",$Okbutton)
ControlDisable($mainwindow,"",$1button)
ControlDisable($mainwindow,"",$2button)

Sleep(3000)

ControlEnable($mainwindow,"",$Okbutton)
ControlEnable($mainwindow,"",$1button)
ControlEnable($mainwindow,"",$2button)
EndFunc

Func _1Button()
MsgBox(0,"","нажата кнопка 1",1)
EndFunc
;
Func _2Button()
MsgBox(0,"","нажата кнопка 2",1)
EndFunc
;
Func CLOSEClicked()
    Exit
EndFunc