capture.py

#!/usr/bin/env python
# Benjamin James Wright <bwright@cse.unsw.edu.au>
# This is a simple capture program that will capture a section of
# the screen on a decided interval and then output the images
# with their corresponding timestamps. (Borrowed from stackoverflow).
# This will continue to capture for the seconds specified by argv[1]

import gtk.gdk
import time
import sys
import config


print "Starting Capture"
print "================"

w = gtk.gdk.get_default_root_window()
sz = w.get_size()

for i in xrange(0, config.CAPTURE_NUM):
  pb = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB,False,8,sz[0],sz[1])
  pb = pb.get_from_drawable(w,w.get_colormap(),0,0,0,0,sz[0],sz[1])
  if (pb != None):
    pb.save("capture/screenshot_"+ str(int(time.time())) +".png","png")
    print "Screenshot " + str(i) + " saved."
  else:
    print "Unable to get the screenshot."
  time.sleep(config.CAPTURE_DELAY)