C / C++ / MFC

void CMainFrame::OnMakemenu() 
{
 // Get the menu from the application window.
   CMenu* mmenu = GetMenu();

   // Look for "File" menu.
   int pos = FindMenuItem(mmenu, "test dyn");
   if (pos == -1)
      return;
   CMenu* submenu = mmenu->GetSubMenu(pos);
   submenu->AppendMenu(MF_STRING, 0, "Dog");
}

int CMainFrame::FindMenuItem(CMenu *Menu, LPCTSTR MenuString)
{
ASSERT(Menu);
   ASSERT(::IsMenu(Menu->GetSafeHmenu()));

   int count = Menu->GetMenuItemCount();
   for (int i = 0; i < count; i++)
   {
      CString str;
      if (Menu->GetMenuString(i, str, MF_BYPOSITION) &&
         (strcmp(str, MenuString) == 0))
         return i;
   }

   return -1;

}

// submenu is a CMenu variable of your window.

submenu.CreatePopupMenu();
submenu.AppendMenu(MF_STRING, ID_APP_EXIT, (LPCTSTR)"E&xit"); // for example.
mmenu->ModifyMenu(pos,MF_BYPOSITION|MF_POPUP,(int)(submenu.m_hMenu),"&File");
 

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

void CMainFrame::OnMakemenu() 
{
 // Get the menu from the application window.
   CMenu* mmenu = GetMenu();

   // Look for "File" menu.
   int pos = FindMenuItem(mmenu, "test dyn");
   if (pos == -1)
      return;

   // Remove "New" menu item from the File menu.
   CMenu* submenu = mmenu->GetSubMenu(pos);
 //  pos = FindMenuItem(submenu, "&New\tCtrl+N");
  // if (pos > -1)
 //     submenu->RemoveMenu(pos, MF_BYPOSITION);
	// TODO: Add your command handler code here
   pos = FindMenuItem(submenu, "junk");
      if (pos > -1)
      submenu->RemoveMenu(pos, MF_BYPOSITION);


	submenu->AppendMenu(MF_STRING, 0, "Dog");
}

int CMainFrame::FindMenuItem(CMenu *Menu, LPCTSTR MenuString)
{
ASSERT(Menu);
   ASSERT(::IsMenu(Menu->GetSafeHmenu()));

   int count = Menu->GetMenuItemCount();
   for (int i = 0; i < count; i++)
   {
      CString str;
      if (Menu->GetMenuString(i, str, MF_BYPOSITION) &&
         (strcmp(str, MenuString) == 0))
         return i;
   }

   return -1;

}