Creating sub menu in runt time using vc++

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MFC

VisualC++

Hi All,

Please kindly Help in this creation of cascading of Menus.

As a first step. i made the first level of code like this way . but i am getting crash please kindly help me. My code is Mentioned here.

I have two Cpp File Example File1 and File 2

in File 1

void CFile1::OnContextMenu(CWnd* pWnd, CPoint point) 
{
  

  CMenu menuPopup;
  menuPopup.LoadMenu(IDR_CNTXT_PLAN);
  CFile2* pView = (CFile2*)GetActiveView();

  pView->UpdateMenu(&menuPopup);

 menuPopup.GetSubMenu(0)->TrackPopupMenu(TPM_LEFTALIGN, point.x, point.y, this);

}

In File2

void CFile2::UpdateMenu(CMenu* pMenu)
{
  CMenu subMenu;
  subMenu.CreatePopupMenu();
  subMenu.AppendMenu(MF_STRING,UDP_Vis_Layer,"VIS");
  
  CMenu* pLayerMenu = pMenu->GetSubMenu(0);
  pLayerMenu->InsertMenu(0,MF_BYPOSITION|MF_POPUP,(UINT)subMenu.m_hMenu,"Layers");
  pMenu->GetSubMenu(0)->InsertMenu(1,MF_BYPOSITION|MF_SEPARATOR,0,"");

}

please kindly help me