Re: [Ilugc] Re: How to trap key strokes
On Sat, Jan 9, 2010 at 12:35 PM, Vijay Kumar wrote:
Saravanan S dearsarava...@... writes:
Hi all,
I used xmodmap to block few key strokes in my distro.
How to initiate/trigger a key combination like say (Ctrl+Shift+Y) as if
the
user has pressed those keys??
Keystrokes can be fed to the kernel using the uinput subsystem. The uinput
subsystem can be accessed through the device file /dev/uinput. But the
interface
is low-level. A wrapper library called libsuinput
http://codegrove.org/libsuinput/ makes things simpler. The code using the
wrapper library is given below. For the sake of simplicity error handling
code
has been omitted.
#include suinput.h
int main(void)
{
struct input_id id = {BUS_BLUETOOTH, 13, 3, 7};
int uinput_fd = suinput_open(HelloInput, id);
suinput_press(uinput_fd, KEY_LEFTCTRL);
suinput_press(uinput_fd, KEY_LEFTSHIFT);
suinput_press(uinput_fd, KEY_Y);
suinput_release(uinput_fd, KEY_Y);
suinput_release(uinput_fd, KEY_LEFTSHIFT);
suinput_release(uinput_fd, KEY_LEFTCTRL);
return 0;
}
Note: You should have uinput module loaded into the kernel. You should have
sufficient privileges to access the device file.
I could not install libsuinput.
Is there any other way to just trigger a single/a combination of key
stroke(s)???
Saravanan Sundaramoorthy
Red Hat Certified Engineer
+91 99404 32545
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Re: How to trap key strokes
Good info Mr. Vijay, but is there any way to understand this better.??? Saravanan Sundaramoorthy Red Hat Certified Engineer +91 99404 32545 ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Re: How to trap key strokes
I had sometime ago tried writing a simple program to emulate mouse clicks based on the code given here : www.einfochips.com/download/dash_jan_tip.pdf but even after running the program, nothing happens, as in I don see the mouse clicks emualted. What might I be missing here ?? Satish -- http://satish.playdrupal.com ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Re: How to trap key strokes
I had sometime ago tried writing a simple program to emulate mouse clicks based on the code given here : www.einfochips.com/download/dash_jan_tip.pdf the code given at the above link seems to use the uinput API directly and not the libsuinput. but even after running the program, nothing happens, as in I don see the mouse clicks emualted. What might I be missing here ?? and I had to change the input device from /dev/uinput to /dev/input/uinput. And ran the program as root. Satish -- http://satish.playdrupal.com ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
