get all handles of a window

Question

Im looking for a way to get all handles in a specified window,
of every button and everything. I tried with EnumDesktopWindows but it doesnt enum every handle, only the window handles.

Answer 1

  public Form1()
  {
     InitializeComponent();
     List<IntPtr> handles = GetHandles(this.Controls);
  }

  public List<IntPtr> GetHandles(Control.ControlCollection inControls)
  {
     List<IntPtr> list_of_handles = new List<IntPtr>();
     if(inControls != null)
     {
        foreach (Control c in inControls)
        {
           list_of_handles.Add(c.Handle);
           list_of_handles.AddRange(GetHandles(c.Controls));
        }
     }
     return list_of_handles;
  }

Answer 2

I think he is trying to get the handles of another window, not his window