Thanks slag for the quick reply. Yes, I have some questions. There are some APIs to interface x-plane.
The main question is: how to get the content of the mcdu screen? The buttons are not the problem. There are interfaces for the Teensy or for the Arduino to send messages to a flight sim, fsx or x.plane.
But - the direction back - i would hope there is a command to x-plane or fsx to get the content of the screen in - let's say - XML. Or - the not-so-good-solution - get the content of the MCDU-Screen-Part in fsx or x-plane. That is the part I don' t understand.
I think you are suggesting the latter way, is that right? Connect a small screen to a 2nd computer - run x-plane there and configure x-plane to only view the mcdu screen? That is possible? Then for each mcdu one has to buy a single computer and the license?
(Background: i am programmer and familiar with python, java, .NET - so i just need the programmier's interface)
kind regards
peter