How to skin tray menu?

I use toolkit pro 13.2.1. This is what i did in my project.(MFC dialog based application.)
1. Add
#include <XTToolkitPro.h> to stdafx.h.
2. Initialize the skin in CXXXApp::InitInstance
    void InitializeSkin()
    {
        CString pathToSkinFiles = GetSkinFolderPath() ;

        XTPSkinManager()->SetApplyOptions(xtpSkinApplyFrame | xtpSkinApplyColors | xtpSkinApplyMetrics);
        XTPSkinManager()->LoadSkin(pathToSkinFiles, _T("default.INI"));
    }
3. Change every used CDialog to CXTResizeDialog.
I add a tray menu to my application. Everything(dialog skin) ok, except the tray menu. What should i do to skin the menu? My code is:
LRESULT CXXXXDlg::OnNotify(WPARAM wParam, LPARAM lParam)
{
    if((UINT)wParam == IDR_MAINFRAME)
    {
        UINT eventID = static_cast<UINT>(lParam);
        if(eventID == WM_LBUTTONDBLCLK)
        {
            OnShoworHideMainWindow(!iswindowshow_, 0);
        }

        if(eventID == WM_RBUTTONDOWN)
        {
            SetForegroundWindow();

            POINT pt;
            GetCursorPos(&pt);//get mouse pos

            HMENU hMenu = LoadMenu(AfxGetApp()->m_hInstance, MAKEINTRESOURCE(IDR_TRAY_MENU));
            HMENU hSubMenu = GetSubMenu(hMenu, 0);
            SetMenuDefaultItem(hSubMenu, ID_APP_CONFIG, FALSE);
            TrackPopupMenuEx(hSubMenu, TPM_RIGHTALIGN,    pt.x, pt.y, m_hWnd, NULL);
            DestroyMenu(hMenu);
        }
    }

    return 0;
}
TIA.