GopherProxy

	lsw.c - lsw - lists window titles of X clients to stdout
	git clone git://git.suckless.org/lsw
	Log
	Files
	Refs
	README
	LICENSE
	---
	lsw.c (1466B)
	---
	1 /* See LICENSE file for copyright and license details. */
	2 #include <stdio.h>
	3 #include <stdlib.h>
	4 #include <string.h>
	5 #include <X11/Xlib.h>
	6 #include <X11/Xutil.h>
	7
	8 static Atom netwmname;
	9 static Display *dpy;
	10
	11 static char *
	12 getname(Window win)
	13 {
	14 static char buf[BUFSIZ];
	15 char **list;
	16 int n;
	17 XTextProperty prop;
	18
	19 if (!XGetTextProperty(dpy, win, &prop, netwmname) \|\| !prop.nitem…
	20 if (!XGetWMName(dpy, win, &prop) \|\| !prop.nitems)
	21 return "";
	22 }
	23 if (!XmbTextPropertyToTextList(dpy, &prop, &list, &n) && n > 0) {
	24 strncpy(buf, list[0], sizeof(buf));
	25 XFreeStringList(list);
	26 } else {
	27 strncpy(buf, (char *)prop.value, sizeof(buf));
	28 }
	29 XFree(prop.value);
	30 buf[sizeof(buf) - 1] = '\0';
	31
	32 return buf;
	33 }
	34
	35 static void
	36 lsw(Window win)
	37 {
	38 unsigned int n;
	39 Window wins, w, dw;
	40 XWindowAttributes wa;
	41
	42 if (!XQueryTree(dpy, win, &dw, &dw, &wins, &n) \|\| !n)
	43 return;
	44 for (w = &wins[n-1]; w >= &wins[0]; w--) {
	45 if (XGetWindowAttributes(dpy, *w, &wa)
	46 && !wa.override_redirect && wa.map_state == IsViewable)
	47 printf("0x%07lx %s\n", w, getname(w));
	48 }
	49 XFree(wins);
	50 }
	51
	52 int
	53 main(int argc, char *argv[])
	54 {
	55 int i;
	56
	57 if (!(dpy = XOpenDisplay(NULL))) {
	58 fprintf(stderr, "%s: cannot open display\n", argv[0]);
	59 exit(EXIT_FAILURE);
	60 }
	61 netwmname = XInternAtom(dpy, "_NET_WM_NAME", False);
	62
	63 if (argc < 2) {
	64 lsw(DefaultRootWindow(dpy));
	65 } else {
	66 for (i = 1; i < argc; i++)
	67 lsw(strtol(argv[i], NULL, 0));
	68 }
	69
	70 XCloseDisplay(dpy);
	71
	72 return EXIT_SUCCESS;
	73 }