comparedirs

import gtk.gdk
import os
import time

basedir = os.path.join(os.path.expanduser("~"), "screenguard")
timeformat = '%d.%m.%Y %H:%M:%S'

if not os.path.exists(basedir):
    os.mkdir(basedir)

collect_size = 50
collect_index = 0
oldsec = time.localtime().tm_sec
print time.localtime().tm_sec
#feststellen, wo aufgehoert: dort weitermachen

collect_index = 0 #begin after the last file
while 1:
    if os.path.exists(os.path.join(basedir, "screenshot%04d.png" % collect_index)):
       collect_index += 1
    else:
        break
#option: destination path

while 1:
    w = gtk.gdk.get_default_root_window()
    sz = w.get_size()
    print sz
    print "The size of the window is %d x %d" % sz

    pb = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB,False,8,1280,sz[1])
    pb = pb.get_from_drawable(w,w.get_colormap(),1280,0,0,0,1280,sz[1])

    newfilename = os.path.join(basedir, "screenshot%04d.png" % collect_index)
    if os.path.exists(newfilename): #delete old file before
        os.remove(newfilename)
    if (pb != None):
      pb.save(newfilename, "png") # option for file format # hier erst exension dazu (optparse)
      #pb.save(newfilename, "jpeg", {"quality":"40"}) #bringt eh nicht viel

      print "Screenshot saved to %s" % newfilename
    else:
      print "Unable to get the screenshot.", time.strftime(timeformat)
    collect_index += 1
    if collect_index >= collect_size:
        collect_index = 0

    while 1: #print one sreenshot each second
        if time.localtime().tm_sec != oldsec:
            break
        else:
            time.sleep(0.1) #give time for other things

    oldsec = time.localtime().tm_sec
    print time.localtime().tm_sec

    #todo keypress event: "q" oder "Q" oder "x" oder "X" => abbruch