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/* * $Id: urgent.c 168 2009-01-23 02:28:49Z kostix $ * * Compile with *     gcc -lX11 -o urgent urgent.c */#include <stdio.h>#include <stdlib.h>#include <string.h>#include <errno.h>#include <X11/Xlib.h>#include <X11/Xutil.h>typedef long (*FLAGMANIP) (long);static long set_urgency(long flags){	return flags | XUrgencyHint;}static long clear_urgency(long flags){	return flags & ~XUrgencyHint;}static long toggle_urgency(long flags){	if ((flags & XUrgencyHint) == 0) {		return set_urgency(flags);	} else {		return clear_urgency(flags);	}}static int apply(Display *dpy, Window id, FLAGMANIP f){	XWMHints *hints = XGetWMHints(dpy, id);	if (hints == NULL)		return 0;	hints->flags = f(hints->flags);	return (XSetWMHints(dpy, id, hints) != 0);}int main(int argc, char *argv[]){	const char helpstr[] = "Usage: urgent {-set|-clear|-toggle} XWINID\n";	Display *dpy;	Window id;	FLAGMANIP action;	if (argc == 2 && strcmp(argv[1], "-help") == 0) {		printf("Sets, clears or toggles the \"urgency\" flag "			"for a specified X window using its WM_HINTS property\n");		printf(helpstr);		return EXIT_SUCCESS;	}	if (argc != 3) {		fprintf(stderr, "Wrong number of agruments\n");		fprintf(stderr, helpstr);		return EXIT_FAILURE;	}	if (strcmp(argv[1], "-set") == 0) {		action = set_urgency;	} else if (strcmp(argv[1], "-clear") == 0) {		action = clear_urgency;	} else if (strcmp(argv[1], "-toggle") == 0) {		action = toggle_urgency;	} else {		fprintf(stderr, "Invalid action \"%s\", "			"must be one of -set, -clear or -toggle\n", argv[1]);		return EXIT_FAILURE;	}	errno = 0;	id = strtol(argv[2], NULL, 16);	if (errno != 0) {		fprintf(stderr, "Invalid X window id \"%s\", "			"must be a hexadecimal integer\n", argv[2]);		return EXIT_FAILURE;	}	dpy = XOpenDisplay(NULL);	if (dpy == NULL) {		fprintf(stderr, "Unable to open display.");		return EXIT_FAILURE;	}	apply(dpy, id, action);	XFlush(dpy);	XCloseDisplay(dpy);	return EXIT_SUCCESS;}