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/* Warp the pointer to the bottom right corner of the screen any time a key is pressed.
*
* Copyright (C) 2005 Shawn Betts <sabetts@vcn.bc.ca>
*
* unrat is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* unrat is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*/
/*
This is what I used to compile it:
gcc -g -Wall -O2 -I/usr/X11R6/include -o unrat unrat.c -L /usr/X11R6/lib -lX11
*/
#include <X11/Xos.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xproto.h>
#include <stdio.h>
#include <stdlib.h>
int (*defaulthandler)();
int
errorhandler(Display *display, XErrorEvent *error)
{
if(error->error_code!=BadWindow)
(*defaulthandler)(display,error);
return 0;
}
int
main (int argc, char **argv)
{
Display *display;
int i, numscreens;
display = XOpenDisplay(NULL);
if(!display)
{
perror("could not open display");
exit(1);
}
defaulthandler = XSetErrorHandler(errorhandler);
numscreens = ScreenCount(display);
for (i=0; i<numscreens; i++)
{
unsigned int j, nwins;
Window dw1, dw2, *wins;
XSelectInput(display,RootWindow(display, i), KeyReleaseMask | SubstructureNotifyMask);
XQueryTree(display, RootWindow(display, i), &dw1, &dw2, &wins, &nwins);
for (j=0; j<nwins; j++)
XSelectInput(display, wins[j], KeyReleaseMask);
}
while (1)
{
XEvent event;
do
{
XNextEvent(display,&event);
if (event.type == CreateNotify)
XSelectInput(display, event.xcreatewindow.window, KeyReleaseMask);
} while(event.type != KeyRelease);
/* A key was pressed. warp the rat. */
for (i=0; i<numscreens; i++)
{
int x, y, wx, wy;
unsigned int mask;
Window root, child;
XQueryPointer (display, RootWindow(display, i),
&root, &child,
&x, &y, &wx, &wy,
&mask);
if (x < DisplayWidth (display, i)-1
|| y < DisplayHeight (display, i)-1)
XWarpPointer (display, None, RootWindow(display, i), 0, 0, 0, 0, DisplayWidth (display, i), DisplayHeight (display, i));
}
}
XCloseDisplay (display);
return 0;
}
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