Color menu

#include <GuiMenu.au3>
Local $iMenuItem[1]
Local $tPoint, $aPos, $a_iniList, $ContMenu

$hGui = GUICreate('My Program', 250, 260)
$iCombo = GUICtrlCreateButton('v', 220, 10, 22, 22)
GUISetState()
While 1
    Switch GUIGetMsg()
        Case $iCombo
                $ContMenu = GUICtrlCreateContextMenu($iCombo)
                SetMenuColor(-1, 0xAAFFFF)
                $a_iniList = StringSplit('item1|item2|item3|item4', '|')
                ReDim $iMenuItem[$a_iniList[0] + 1]
                $iMenuItem[0] = $a_iniList[0]
                For $i = 1 To $a_iniList[0]
                    $iMenuItem[$i] = GUICtrlCreateMenuItem($a_iniList[$i], $ContMenu)
                Next
                $aPos = ControlGetPos($hGui, "", $iCombo)
                $tPoint = DllStructCreate("int X;int Y")
                DllStructSetData($tPoint, "X", $aPos[0] + $aPos[2])
                DllStructSetData($tPoint, "Y", $aPos[1] + $aPos[3])
                _WinAPI_ClientToScreen($hGui, $tPoint)
                _GUICtrlMenu_TrackPopupMenu(GUICtrlGetHandle($ContMenu), $hGui, DllStructGetData($tPoint, "X"), DllStructGetData($tPoint, "Y"), 2)
                $tPoint = 0
                GUICtrlDelete($ContMenu)
        Case -3
            Exit
    EndSwitch
WEnd

Func SetMenuColor($nMenuID, $nColor)
    Local $tInfo
    $tInfo = DllStructCreate($tagMENUINFO)
    DllStructSetData($tInfo, 1, DllStructGetSize($tInfo))
    DllStructSetData($tInfo, 2, BitOR($MIM_APPLYTOSUBMENUS, $MIM_BACKGROUND))
    DllStructSetData($tInfo, 5, _WinAPI_CreateSolidBrush($nColor))
    _GUICtrlMenu_SetMenuInfo(GUICtrlGetHandle($nMenuID), $tInfo)
EndFunc   ;==>SetMenuColor