ryudo/xevents.c

/*
 * Original code posted to comp.sources.x (see printevent.c).
 * Modifications by Russ Cox <rsc@swtch.com>.
 */

#include <stdio.h>
#include <stdlib.h>
#include <X11/Intrinsic.h>
#include "printevent.h"

int main(int argc, char** argv) {
  int screen;
  Display* dpy;
  Window window;
  XEvent event;

  if (!(dpy = XOpenDisplay(""))) {
    printf("Failed to open display...\n");
    exit(1);
  }

  screen = DefaultScreen(dpy);

  window = XCreateSimpleWindow(
    dpy,
    RootWindow(dpy, screen),
    100,
    100,
    300,
    200,
    2,
    BlackPixel(dpy, screen),
    WhitePixel(dpy, screen));

  XSelectInput(
    dpy,
    window,
    KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask |
      EnterWindowMask | LeaveWindowMask | PointerMotionMask |
      PointerMotionHintMask | Button1MotionMask | Button2MotionMask |
      Button3MotionMask | Button4MotionMask | Button5MotionMask |
      ButtonMotionMask | KeymapStateMask | ExposureMask | VisibilityChangeMask |
      StructureNotifyMask | SubstructureNotifyMask | SubstructureRedirectMask |
      FocusChangeMask | PropertyChangeMask | ColormapChangeMask |
      OwnerGrabButtonMask);

  XMapWindow(dpy, window);

  for (;;) {
    XNextEvent(dpy, &event);
    printevent(&event);
  }
}