looking for a virtual emulated midi controller


I am looking for a virtually emulated midi controller. somthing fancy i found is this, a drag and drop gui to create various midi control stuff on a ipad:

http://mididesigner.com/images/design-mode–both-devices-750-2012-10-22-xy-fixed.png source http://mididesigner.com/ .

Well, i just like a windows app for that task. i googled quite a bit but some how i didnt found anything. Maybe some one can suggest somthing?

Many thanks for answers.