How to add new window with button?

[Saiful]

Hi, I made a software which have some button. When I'll click any button then will open another new window. I can't link another window with the button. In this case how can I do it?

 

[Starstar]

Every GUI(window) must have different controls like buttons check-box input etc..........And different loop here while

 

$gui1 = GUICreate("Window",300,100)
$btn1 = GUICtrlCreateButton("New",50,50,30,25)
GUISetState(@SW_SHOW)

While 1
    $Gmsg = GUIGetMsg()
    Switch $Gmsg
        Case $btn1
            $gui2 = GUICreate("Window2",200,80)
            $btn2 = GUICtrlCreateButton("New2",50,50,35,25)
            GUISetState(@SW_SHOW)
            While 2
                $Gmsg = GUIGetMsg()
                Switch $Gmsg
                    Case $btn2
                        MsgBox(0,"","HI")

                    Case -3
                        Exit
                        EndSwitch
            WEnd
        Case -3
            Exit
    EndSwitch
WEnd

GUISetState(@SW_SHOW)