!include "nsDialogs.nsh"
!include "winmessages.nsh"
!include "logiclib.nsh"
OutFile "test.exe"

Page Custom pre

var dialog
var hwnd
var button

Function pre
	nsDialogs::Create 1018
	Pop $dialog
	${NSD_CreateCheckbox} 0 0 50 6 "Enable button below"
		Pop $hwnd
		${NSD_OnClick} $hwnd EnDisableButton

	${NSD_CreateButton} 25 25 50 50 "Hello World"
		Pop $button
		EnableWindow $button 0 # start out disabled

	nsDialogs::Show
FunctionEnd

Function EnDisableButton
	Pop $hwnd
	${NSD_GetState} $hwnd $0
	${If} $0 == 1
		EnableWindow $button 1
	${Else}
		EnableWindow $button 0
	${EndIf}
FunctionEnd

Section ""
SectionEnd