Hello Max,

many thanks for the commented example. The important information for me at first is the automatic assignment of the sequence of the inputs to the parameters sequence of the callback, I supposed that, but I was not shure.
(// callback function which will be called for processing of each value set (center = input0, r = input1, rt = input2, s = input3) )
Am I right, that I can also direct access to the elements of a numarray with [] ? I can't find a explicit definition of that type!?

Have a nice evening
Karsten

p.s.: Incredible what is possible!