54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/* See LICENSE file for details. */
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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#include <X11/Xutil.h>
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void
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eprint(const char *errstr, ...) {
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va_list ap;
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va_start(ap, errstr);
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vfprintf(stderr, errstr, ap);
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va_end(ap);
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exit(EXIT_FAILURE);
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}
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int
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main(int argc, char **argv) {
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int status, format;
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unsigned char *data = NULL;
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unsigned long n, extra;
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Display *dpy;
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Window root;
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Atom netwmcheck, netwmname, utf8_string, real;
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if(argc > 2)
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eprint("usage: wmname [name] [-v]\n");
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else if(argc == 2 && !strncmp(argv[1], "-v", 3))
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eprint("wmname-"VERSION", © 2008 Anselm R Garbe\n", stdout);
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if(!(dpy = XOpenDisplay(0)))
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eprint("wmname: cannot open display\n");
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root = DefaultRootWindow(dpy);
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netwmcheck = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
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netwmname = XInternAtom(dpy, "_NET_WM_NAME", False);
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utf8_string = XInternAtom(dpy, "UTF8_STRING", False);
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if(argc == 1) {
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status = XGetWindowProperty(dpy, root, netwmname, 0L, 32L, False, utf8_string, &real, &format, &n, &extra, (unsigned char **) &data);
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if(status == Success && data != NULL)
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fprintf(stdout, "%s\n", data);
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XFree(data);
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}
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else {
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XChangeProperty(dpy, root, netwmcheck, XA_WINDOW, 32, PropModeReplace, (unsigned char *)&root, 1);
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XChangeProperty(dpy, root, netwmname, utf8_string, 8, PropModeReplace, (unsigned char *)argv[1], strlen(argv[1]));
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}
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XSync(dpy, False);
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XCloseDisplay(dpy);
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return 0;
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}
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