Hello for connect touchOSC to traktor on windows go to TouchOSC | hexler.net and go at the end of the page and download touchosc midi bridge.
Install on windows an run it.
On ipad
Enter to touchOSC enter to midi bridge and activate it.
Wait 3 second and it detect auto your pc.
Click on your PC name and it is connect whith pc.
I use a camera connection kit, 2 midi to USB leads and 2 midi to midi adaptors.
There are dedicated adaptors you can buy like the Alesis IOdock or the Line6 midi mobilizer but my way is a lot cheaper
Thanks you, I would prefer the chipiest way ha,ha,ha.
Can you make a photo of your setup? I have some doubts with what I will have to buy!
Thanks you again!