> Could you please help me with this problem? > Thank you very much! Please take a look at the SDI MFC sample shipped with the VTK source. greets Ingo --- Dr.-Ing. Ingo H. de Boer Polytec GmbH Polytec-Platz 1-7, 76337 Waldbronn, Germany phone: ++49 7243 604 106 fax : ++49 7243 604 255