Re: Track keyboard and mouse usage
Hi Francois, Thank you for providing me the evdev link! That was exactly what I was looking for. Instead of sudo'ing the script, I changed /dev/input/ directory to be world readable. After that, I had to change the way a file was accessed in evdev.py to: Line No: 91 #self.fd = os.open(filename, os.O_RDWR | os.O_NONBLOCK) self.fd = os.open(filename, os.O_RDONLY | os.O_NONBLOCK) Runs great. Thanks again. [EMAIL PROTECTED] wrote: Hello dfaber, I had the same problem not long ago. I tried to use the Xlib since its obvious the X server has all the events but I couldn't have the mouse events if my app was out of focus. If you have a way to do that I'm really interested. Anyway I found this to be a good introduction to Xlib: http://users.actcom.co.il/~choo/lupg/tutorials/xlib-programming/xlib-programming.html#preface Since I didn't find a way to do it I went down to the source of the events which are provided by the evdev drivers: http://en.wikipedia.org/wiki/Evdev Fortunately you can use Python to access it: http://svn.navi.cx/misc/trunk/python/evdev/ First you need to know your input devices, search the eventX in relation to your device here: cat /proc/bus/input/devices Then you can do: sudo python evdev.py /dev/input/eventX # where X is the event number in relation to your device (kb is usually zero) It works well but there is two problems with this solution: - the root access is annoying (but I'll have to try Diez suggestion) - The X event number of the mouse can change from a PC to another one (you need to check the PC first with that cat command and search for your mouse francois dfaber wrote: Hi all, I have been searching for a keyboard and mouse tracker on linux. I've read solutions (watch at sourceforge) which look at /proc/interrupts to check keyboard or mouse activity. I also read one post where watch seems to have difficulty tracking usb keyboards and mice. So, I'm out of ideas here. My goal are: 1. Check keyboard activity. I'm not interested in logging which keys are pressed or record them. 2. Monitor mouse activity. I want to know the pointer position, left-clicks, right-clicks, middle-mouse button usage. I know that these things can be done in a GUI environment. I am looking for some approach that helps me do this system-wide. Any suggestions would be welcome. Again, I am looking for trackers on Linux based machines. -- http://mail.python.org/mailman/listinfo/python-list
Re: Track keyboard and mouse usage
That IS brain-crushingly complicated. However, thanks for the insight.
I really appreciate it.
Dennis Lee Bieber wrote:
On 17 Jul 2006 21:00:09 -0700, dfaber [EMAIL PROTECTED] declaimed
the following in comp.lang.python:
Is there no clean method of accessing the keyboard device or the mouse
on linux?
It seems that looking at /proc/interrupts might prove to be useful for
keyboard monitoring. What about checking if the left mouse button is
clicked or finding the position of the cursor on the screen?
For a GUI application, it probably depends upon the interface
supplied by that GUI system... So far as I know, all Linux variants are
using an X-Window clone as the bottom protocol.
Problem: X-Window supports remote displays; you'd need a means of
specifying which display to track (unless you've opened a GUI
application and that application is asking for positions -- but it may
not be able to track outside the application window... Sorry to be so
vague -- I last coded an X interface back in 1990, using xt/DECWindows
calls; didn't even have a GUI designer available*)
I don't think anyone has ported raw X-protocol access to Python.
All those monitoring operations you are asking for are events to
a windowing environment, and applications have to register for the
events they are interested in seeing.
* If working raw xt/DECWindows wasn't bad enough... Add GKS (is that
still around?) on top of it -- I had a DECWindows UI whose main window
was a plain drawing region, and GKS was used to handle the underlying
data. The application was both graphics intensive, and needed a display
list (in scaleable coordinates to handle window resize) for refresh
operations; it used a 32 color data field, and four or so single color
overlays -- and any one of the five could be enabled/disabled without
requiring a recomputation of the drawing. This mess was because the
DECWindows/GKS application was an emulation (at the API level) of a late
70s/early 80s RAMTEK graphics engine... The main application was
really something like 50 specialized programs that all connected to
the graphics engine, drew some data, and exited; allowing other
programs in the suite to draw on the /same/ window -- which is why the
need for GKS; refreshes couldn't ask for the source application to
repaint the screen. {The very oldest version of the software ran on
PDP-11s, hence the modular programs, the control program would collect
user data/parameters, write a common block file then invoke the needed
submodule as an overlay.
--
WulfraedDennis Lee Bieber KD6MOG
[EMAIL PROTECTED] [EMAIL PROTECTED]
HTTP://wlfraed.home.netcom.com/
(Bestiaria Support Staff: [EMAIL PROTECTED])
HTTP://www.bestiaria.com/
--
http://mail.python.org/mailman/listinfo/python-list
Track keyboard and mouse usage
Hi all, I have been searching for a keyboard and mouse tracker on linux. I've read solutions (watch at sourceforge) which look at /proc/interrupts to check keyboard or mouse activity. I also read one post where watch seems to have difficulty tracking usb keyboards and mice. So, I'm out of ideas here. My goal are: 1. Check keyboard activity. I'm not interested in logging which keys are pressed or record them. 2. Monitor mouse activity. I want to know the pointer position, left-clicks, right-clicks, middle-mouse button usage. I know that these things can be done in a GUI environment. I am looking for some approach that helps me do this system-wide. Any suggestions would be welcome. Again, I am looking for trackers on Linux based machines. -- http://mail.python.org/mailman/listinfo/python-list
Re: Track keyboard and mouse usage
So, how would I access /dev/input/ devices? Can I just 'cat' them or read in those files? Diez B. Roggisch wrote: [EMAIL PROTECTED] schrieb: Diez You could use the /dev/input/event* devices. On the only Linux system I have available (Mojam's CentOS-based web server), /dev/input/* are readable only by root. That doesn't seem like it would be very useful to tools like watch unless they were to run suid to root (creating other problems). You don't need to give it root access. A simple rule for the udev that looks like this: KERNEL==event[0-9]*,NAME=input/%k, MODE=0444 will make the devices world readable. While I haven't thought about any security implications that might have (and am not especially knowledgeable in such things to be honest), I'm convinced it is way less likely to introduce any exploitable holes than suid root would. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Track keyboard and mouse usage
So, how would I access /dev/input/ devices? Can I just 'cat' them or read in those files? Diez B. Roggisch wrote: [EMAIL PROTECTED] schrieb: Diez You could use the /dev/input/event* devices. On the only Linux system I have available (Mojam's CentOS-based web server), /dev/input/* are readable only by root. That doesn't seem like it would be very useful to tools like watch unless they were to run suid to root (creating other problems). You don't need to give it root access. A simple rule for the udev that looks like this: KERNEL==event[0-9]*,NAME=input/%k, MODE=0444 will make the devices world readable. While I haven't thought about any security implications that might have (and am not especially knowledgeable in such things to be honest), I'm convinced it is way less likely to introduce any exploitable holes than suid root would. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Track keyboard and mouse usage
Is there no clean method of accessing the keyboard device or the mouse on linux? It seems that looking at /proc/interrupts might prove to be useful for keyboard monitoring. What about checking if the left mouse button is clicked or finding the position of the cursor on the screen? -- http://mail.python.org/mailman/listinfo/python-list
starting and stopping a program from inside a python script
Aloha!
I want to terminate a process/program from within a python script.
For example,
if I have a program say foo.sh that starts running, then I can run it
from within a python script using
os.popen('foo.sh') which starts a program/process say 'bar'
At some point later, I want to kill 'bar'. Currently, I start off the
process and then when the python script exits, the process 'bar' is
still running and I have to issue ps -ef | grep 'bar' and then kill
it.
Is there any better way of doing this?
--
http://mail.python.org/mailman/listinfo/python-list
Re: Python editor recommendation.
I use Eclipse with the Pydev plugin. It's great way to start familiarizing yourself with Python. The editor has got great features and the debugger will be a great help too. Vim is great too but may be not a good idea if you are new to Python. Good luck! -- http://mail.python.org/mailman/listinfo/python-list
python and webcam
Hi, I have Logitech webcam and I need to grab images on Fedora Core 4 (not my favorite distro). Are there any python modules available for doing this? Any hints or suggestions would be welcome. Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: python and webcam
It is a Win32 Python Extension. I am looking for something that work on Linux. -- http://mail.python.org/mailman/listinfo/python-list
Re: python and webcam
Thank you for your help. I will look around for v4l modules too. -- http://mail.python.org/mailman/listinfo/python-list
Re: python and webcam
Hi again,
I've tried a the Sane interface from PIL and I get the following
error, when I run the demo_pil.py from the Sane directory.
SANE version: (16777231, 1, 0, 15)
Available devices= [('v4l:/dev/video0', 'Noname', 'Logitech QuickCam
Pro 3000', 'virtual device')]
Traceback (most recent call last):
File /PyWebcam/demo_pil.py, line 17, in ?
s.br_x=320. ; s.br_y=240.
File /usr/lib/python2.4/site-packages/sane.py, line 150, in
__setattr__
raise AttributeError, 'Inactive option: '+key
AttributeError: Inactive option: br_x
Next, I looked at v4l support for python with absolutely no
documentation. I tried to build the modules and I get the following
error:
python setup.py build
running build
running build_ext
building 'v4l' extension
gcc -pthread -fno-strict-aliasing -DNDEBUG -O2 -g -pipe
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -m32 -march=i386 -mtune=pentium4
-fasynchronous-unwind-tables -D_GN U_SOURCE -fPIC -fPIC
-I/usr/include/python2.4 -c v4l.c -o build/temp.linux-i686- 2.4/v4l.o
v4l.c: In function 'v4l_getImage':
v4l.c:890: warning: pointer targets in assignment differ in signedness
v4l.c: In function 'initv4l':
v4l.c:1585: error: 'VIDEO_AUDIO_BALANCE' undeclared (first use in
this function)
v4l.c:1585: error: (Each undeclared identifier is reported only once
v4l.c:1585: error: for each function it appears in.)
error: command 'gcc' failed with exit status 1
I also looked at libfg http://antonym.org/libfg and I get the following
errors again:
---
python setup.py build
running build
running build_ext
building 'fg' extension
gcc -pthread -shared build/temp.linux-i686-2.4/fgmodule.o -L. -lfg -o
build/lib.linux-i686-2.4/fg.so
/usr/bin/ld: cannot find -lfg
collect2: ld returned 1 exit status
error: command 'gcc' failed with exit status 1
I google-ed extensively have so far found only these three packages.
Any ideas why I get these error messages?
--
http://mail.python.org/mailman/listinfo/python-list
