From: Babu, N. \(GE Healthcare\) <Nar...@ge...> - 2007-03-06 11:30:03
|
Hi, =20 I am new to frame buffer concept. Currently I need to capture the screen shot (print screen) with my application. Is there any idea\code by which we can capture the screen from application by using the frame buffer ? =20 Thanks, Narendra |
From: Jenkins, C. <Cli...@xe...> - 2007-03-06 12:43:27
|
> Currently I need to capture the screen shot (print screen) with my > application. > Is there any idea\code by which we can capture the screen from > application by using the frame buffer ? > =20 > Thanks, > Narendra You can do it with a shell command: cp /dev/fb0 screenshot.raw [then maybe use ImageMagick to process the file screenshot.raw] Or you can do it with your own program using open(), read()or mmap(), close() on the frame buffer device. Look at the frame buffer documentation in the kernel tree under the Documentation directory, and use Google to find other material. Clive |