[Paraview] Question on Image reader

[Thorsten Hater]

Hello everyone.

I'm trying to implement a custom reader for ParaView 3.4.
The output data is of the ImageData type.
With the help of the ParaView guid I got as far as implementing
the reader, save the most important bit of filling the actual data
into the output object.
So I have got the raw binary array - or file, if this is better -
and the vtkImageData object.
How can I move my data into the vtk object?

Thanks in advance
    Thorsten