Hi! First of all, thanks a lot to you for your support! I'm finally able to make use of my Matrox II / Multichannel framegrabber card using 'pgmgrab'. I've also programmed a Java Native Interface and a Java application that grabs data from that card. What I'm interested now is the following: As mentioned in the "Video Capture API Specification", a 'Raw Device Image Cropping' functionality is to come! I'm trying to grab an ROI (Region of Interest) of the complete frame. Is the above named function the right one for that purpose and does anybody know when it probably will be implemented in V4L2? Thanks for your ansers in advance. Cheers, Ewald. Ewald Fauster ---------------------- University of Leoben Institute for Automation Peter-Tunner-Strasse 27 8700 Leoben AUSTRIA Tel.: ++43 3842 402 9037 E-Mail: ewald.fauster@xxxxxxxxxxxxxxx