Create a Func for this?

 
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <StaticConstants.au3>
 
Global $GUI = GUICreate("MyGUI", 200, 200, -1, -1, BitOR($WS_POPUPWINDOW, $WS_SYSMENU, $WS_MINIMIZEBOX))
GUISetBkColor(0x00000)
$dTitleBarColor = 0x00000
$hTitleBar = GUICtrlCreateLabel("My Test", 0, 4, 140, 25, $SS_NOTIFY, $GUI_WS_EX_PARENTDRAG)
GUICtrlSetFont(-1, 11, 500, "Arial")
GUICtrlSetColor($hTitleBar, 0xFFFFFF)
GUICtrlSetBkColor($hTitleBar, $dTitleBarColor)
 
Local $hClose = GUICtrlCreateLabel(" X", 170, 4, 22, 21)
GUICtrlSetFont(-1, 12, 600, -1)
GUICtrlSetColor($hClose, 0xFFFFFF)
GUICtrlSetBkColor($hClose, $dTitleBarColor)
GUICtrlSetTip($hClose, "Close")
GUICtrlSetBkColor(-1, $dTitleBarColor)
 
Local $hMinimize = GUICtrlCreateLabel("__", 140, 4, 21, 21)
GUICtrlSetFont(-1, 8, 600, 4, "Comic Sans MS")
GUICtrlSetColor($hMinimize, 0xFFFFFF)
GUICtrlSetBkColor($hMinimize, $dTitleBarColor)
GUICtrlSetTip($hMinimize, "Minimize")
GUISetState(@SW_SHOW)
 
While 1
 $nMsg = GUIGetMsg()
 Switch $nMsg
  Case $GUI_EVENT_CLOSE, $hClose
   Exit
  Case $hMinimize
   GUISetState(@SW_MINIMIZE, $GUI)
 EndSwitch
WEnd