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/************************************************************************
*
* File: xinput.c
*
* Sample program to access input devices other than the X pointer and
* keyboard using the Input Device extension to X.
* This program creates a window and selects input from it.
* To terminate this program, press button 1 on any device being accessed
* through the extension when the X pointer is in the test window.
*
* To compile this program, use
* "cc xinput.c -I/usr/include/X11R5 -L/usr/lib/X11R5
* -lXi -lXext -lX11 -o xinput
*/
#include <X11/Xlib.h>
#include <X11/extensions/XInput.h>
#include "stdio.h"
main()
{
int i, j, count, ndevices, devcnt=0, devkeyp, devbutp;
Display *display;
Window my;
XEvent event;
XDeviceInfoPtr list, slist;
XInputClassInfo *ip;
XDeviceButtonEvent *b;
XEventClass class[128];
XDevice *dev, *opendevs[9];
XAnyClassPtr any;
XKeyInfoPtr K;
if ((display = XOpenDisplay ("")) == NULL)
{
printf ("No connection to server - Terminating.\n");
exit(1);
}
my = XCreateSimpleWindow (display, RootWindow(display,0), 100, 100,
100, 100, 1, BlackPixel(display,0), WhitePixel(display,0));
XMapWindow (display, my);
XSync(display,0);
slist=list=(XDeviceInfoPtr) XListInputDevices (display, &ndevices);
for (i=0; i<ndevices; i++, list++)
{
any = (XAnyClassPtr) (list->inputclassinfo);
for (j=0; j<list->num_classes; j++)
{
if (any->class == KeyClass)
{
K = (XKeyInfoPtr) any;
printf ("device %s:\n",list->name);
printf ("num_keys=%d min_keycode=%d max_keycode=%d\n\n",
K->num_keys,K->min_keycode,K->max_keycode);
}
else if (any->class == ButtonClass)
printf ("device %s num_buttons=%d\n\n",list->name,
((XButtonInfoPtr) any)->num_buttons);
/*
* Increment 'any' to point to the next item in the linked
* list. The length is in bytes, so 'any' must be cast to
* a character pointer before being incremented.
*/
any = (XAnyClassPtr) ((char *) any + any->length);
}
if (1) //list->use != IsXKeyboard &&list->use != IsXPointer)
{
dev = XOpenDevice (display, list->id);
for (ip= dev->classes, j=0; j<dev->num_classes; j++, ip++)
if (ip->input_class == KeyClass)
{
/* This is a macro, the braces are necessary */
DeviceKeyPress (dev, devkeyp, class[count++]);
}
else if (ip->input_class == ButtonClass)
{
DeviceButtonPress (dev, devbutp,class[count++]);
}
opendevs[devcnt++]=dev;
}
}
XSelectExtensionEvent (display, my, class, count);
for (;;)
{
XNextEvent (display, &event);
if (event.type == devkeyp)
printf ("Device key press event device=%d\n",
((XDeviceKeyEvent *) &event)->deviceid);
else if (event.type == devbutp)
{
b = (XDeviceButtonEvent * ) &event;
printf ("Device button press event device=%d button=%d\n",
b->deviceid, b->button);
if (b->button==1)
break;
}
}
for (i=0; i<devcnt; i++)
XCloseDevice (display, opendevs[i]);
XFreeDeviceList (slist);
}
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