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fc65327b MW |
1 | /* -*-c-*- |
2 | * | |
3 | * Query the current X pointer state | |
4 | * | |
5 | * (c) 2023 Straylight/Edgeware | |
6 | */ | |
7 | ||
8 | /*----- Licensing notice --------------------------------------------------* | |
9 | * | |
10 | * This file is part of the Edgeware X tools collection. | |
11 | * | |
12 | * X tools is free software: you can redistribute it and/or modify it | |
13 | * under the terms of the GNU General Public License as published by the | |
14 | * Free Software Foundation; either version 2 of the License, or (at your | |
15 | * option) any later version. | |
16 | * | |
17 | * X tools is distributed in the hope that it will be useful, but WITHOUT | |
18 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
19 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
20 | * for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with X tools. If not, write to the Free Software Foundation, | |
24 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | */ | |
26 | ||
27 | /*----- Header files ------------------------------------------------------*/ | |
28 | ||
29 | #include <errno.h> | |
30 | #include <limits.h> | |
31 | #include <stdio.h> | |
32 | #include <stdlib.h> | |
33 | ||
34 | #include <X11/Xlib.h> | |
35 | ||
36 | #include <mLib/alloc.h> | |
37 | #include <mLib/macros.h> | |
38 | #include <mLib/mdwopt.h> | |
39 | #include <mLib/quis.h> | |
40 | #include <mLib/report.h> | |
41 | ||
42 | /*----- Help and version information --------------------------------------*/ | |
43 | ||
44 | static void version(void) | |
45 | { pquis(stdout, "$ version " VERSION "\n"); } | |
46 | ||
47 | static void usage(FILE *fp) | |
48 | { pquis(fp, "Usage: $ [-d DISPLAY] X Y\n"); } | |
49 | ||
50 | static void help(void) | |
51 | { | |
52 | version(); putchar('\n'); | |
53 | usage(stdout); | |
54 | fputs("\n\ | |
55 | Report the current pointer state, as SCREEN X Y MASK.\n\ | |
56 | \n\ | |
57 | Command-line options:\n\ | |
58 | \n\ | |
59 | -h, --help Display this help.\n\ | |
60 | -v, --version Display program's version number.\n\ | |
61 | -u, --usage Display short usage summary.\n\ | |
62 | \n\ | |
63 | -d, --display=DISPLAY Connect to X DISPLAY.\n", | |
64 | stdout); | |
65 | } | |
66 | ||
67 | /*----- Main program ------------------------------------------------------*/ | |
68 | ||
69 | int main(int argc, char *argv[]) | |
70 | { | |
71 | const char *display = 0; | |
72 | Display *dpy = 0; | |
73 | Window root, child; | |
74 | int i, screen, x, y, winx, winy; | |
75 | unsigned mask; | |
76 | ||
77 | unsigned f = 0; | |
78 | #define f_bogus 1u | |
79 | ||
80 | ego(argv[0]); | |
81 | ||
82 | /* Parse arguments. */ | |
83 | for (;;) { | |
84 | static struct option opt[] = { | |
85 | { "help", 0, 0, 'h' }, | |
86 | { "usage", 0, 0, 'u' }, | |
87 | { "version", 0, 0, 'v' }, | |
88 | { "display", OPTF_ARGREQ, 0, 'd' }, | |
89 | { 0, 0, 0, 0 } | |
90 | }; | |
91 | ||
92 | i = mdwopt(argc, argv, "huvd:", opt, 0, 0, 0); if (i < 0) break; | |
93 | switch (i) { | |
94 | case 'h': help(); exit(0); | |
95 | case 'u': usage(stdout); exit(0); | |
96 | case 'v': version(); exit(0); | |
97 | case 'd': display = optarg; break; | |
98 | default: f |= f_bogus; break; | |
99 | } | |
100 | } | |
101 | if ((f&f_bogus) || argc - optind != 0) { | |
102 | usage(stderr); | |
103 | exit(EXIT_FAILURE); | |
104 | } | |
105 | ||
106 | /* Open the display. */ | |
107 | if ((dpy = XOpenDisplay(display)) == 0) | |
108 | die(EXIT_FAILURE, "couldn't open display"); | |
109 | ||
110 | /* Find and print where the pointer is. */ | |
111 | XQueryPointer(dpy, DefaultRootWindow(dpy), &root, &child, | |
112 | &x, &y, &winx, &winy, &mask); | |
113 | for (i = 0; i < ScreenCount(dpy); i++) | |
114 | if (root == RootWindow(dpy, i)) { screen = i; goto found_root; } | |
115 | die(2, "pointer is on unknown root window 0x%08lx", (unsigned long)root); | |
116 | found_root: | |
117 | printf("%d %d %d 0x%08x\n", screen, x, y, mask); | |
118 | ||
119 | /* Done. */ | |
120 | XCloseDisplay(dpy); | |
121 | return (0); | |
122 | } | |
123 | ||
124 | /*----- That's all, folks -------------------------------------------------*/ |