RubyでOLEオブジェクトを調べる

RubyでOLEオブジェクトのメソッド定義を調べる方法が気に入った。

require 'win32ole'

ie = WIN32OLE.new("InternetExplorer.Application")
puts ie.ole_obj_help.to_s
method = ie.ole_method_help("Navigate2")
puts method.return_type
method.params.each do |param|
 str = ""
 str.concat "[in] " if param.input?
 str.concat "[out] " if param.output?
 str.concat "[optional] " if param.optional?
 str.concat "[retval] " if param.retval?
 str.concat param.name
 str.concat " = #{param.default}" if param.default
 str.concat " As #{param.ole_type}"
 puts str
end
#>ruby sample.rb
#IWebBrowser2
#VOID
#[in] URL As VARIANT
#[in] [optional] Flags As VARIANT
#[in] [optional] TargetFrameName As VARIANT
#[in] [optional] PostData As VARIANT
#[in] [optional] Headers As VARIANT