experimented a bit and came to the same conclusion as DJBMASTER ^^
works pretty good, but as DJBMASTER wrote, WndProc has to be overloaded smirk
It would be interesting to see how mouse interaction works with this method !

get the C# wrapper:
for A7.85.4 and A8.30.4, Version 2.3.9
at http://acknexwrapper2.matthias-auer.net/ or visit the thread