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def ole_methods
    members = []
    all_methods(@typeinfo) do |ti, oti, desc, docs, name|
      members << WIN32OLE_METHOD.new(nil, name, ti, oti, desc.memid)
      nil
    end
    members
  end

    def all_methods(typeinfo, *args, &block) # MRI: olemethod_from_typeinfo
      # Find method in this type.
      ret = find_all_methods_in(nil, typeinfo, *args, &block)
      return ret if ret

      # Now check all other type impls
      typeinfo.impl_types_count.times do |i|
        begin
          href = typeinfo.get_ref_type_of_impl_type(i)
          ref_typeinfo = typeinfo.get_ref_type_info(href)
          ret = find_all_methods_in(typeinfo, ref_typeinfo, *args, &block)
          return ret if ret
        rescue ComFailException => e
          puts "Error getting impl types #{e}"
        end
      end
      nil
    end