├── .gitignore ├── LICENSE ├── Makefile ├── README.md ├── config.h ├── keystack.c ├── keystack.h ├── showkeys.c ├── showkeys.h └── tests ├── osd-example.c ├── record-attempt.c └── record-example.c /.gitignore: -------------------------------------------------------------------------------- 1 | TAGS 2 | a.out 3 | nul 4 | showkeys 5 | *~ 6 | xev.c 7 | *.o 8 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | showkeys: showkeys.c showkeys.h keystack.o 2 | gcc -g -Wall showkeys.c keystack.o -o showkeys -lX11 -lxosd -lpthread -lXext -lX11 -lXinerama -lXtst 3 | 4 | 5 | keystack.o: keystack.c keystack.h 6 | gcc -c -g keystack.c 7 | 8 | clean: 9 | rm showkeys keystack.o record-attempt record-example 10 | 11 | check-syntax: 12 | gcc -Wall -o nul -S ${CHK_SOURCES} 13 | 14 | record-attempt: record-attempt.c 15 | gcc -g -Wall record-attempt.c -L/usr/lib -lXtst -lxosd -lpthread -lXext -lX11 -lXinerama -o record-attempt 16 | 17 | record-example: record-example.c 18 | gcc -g -Wall record-example.c -L/usr/lib -lXtst -lxosd -lpthread -lXext -lX11 -lXinerama -o record-example 19 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Showkeys 2 | -------- 3 | 4 | Showkeys is a simple program to display keys being pressed on the screen. 5 | 6 | It is useful while making presentations and screencasts. The audience 7 | will be able to see the keys being pressed. 8 | 9 | It is similar to [key-mon](http://code.google.com/p/key-mon/). Key-mon 10 | has more features than showkeys. The advantages of showkeys are 11 | 12 | 1. Doesn't use gtk/gnome. 13 | 2. Uses [libxosd](http://sourceforge.net/projects/libxosd/) to display 14 | keys directly onto the screen. 15 | 3. No floating windows that always need to be on top. This is very 16 | useful if you're using a tiling WM like Xmonad. 17 | 4. Keystroke history. key-mon has this but doesn't show 18 | modifiers. showkeys does this using an Emacs style key notation. 19 | 20 | The list of things which key-mon does better than showkeys is far 21 | longer but I wanted something that fixed these specific issues. 22 | 23 | 24 | 25 | Requirements 26 | ------------ 27 | 28 | You will need 29 | 30 | 1. The Xlib development libraries. (available as `libx11-dev` on Debian). 31 | 2. The libxosd development libraries (available as `libxosd-dev` on Debian). 32 | 3. The libXtst development libraries (available as `libxtst-dev` on Debian). 33 | 4. Your X server should have the [record](http://www.x.org/releases/X11R7.6/doc/libXtst/recordlib.html) extension enabled. You can check if this is enabled by running `xdpyinfo` and searching the list of extensions for `RECORD`. The command itself is part of the `x11-utils` package (alteast on Debian which I run). 34 | 35 | Compiling 36 | --------- 37 | 38 | 1. Unzip the tarball. 39 | 2. Edit the file `config.h` configure showkeys. 40 | 3. Run `make showkeys`. It should create the executable. 41 | 42 | This program uses some [Gnu extensions to libc](http://www.crasseux.com/books/ctutorial/asprintf.html) so might not work with a pure POSIX libc. 43 | 44 | Bugs 45 | ---- 46 | 47 | The project is on Github. Please report bugs using the github issue tracker. 48 | 49 | Contact 50 | ------- 51 | 52 | You can find me @noufalibrahim on Twitter. 53 | 54 | 55 | -------------------------------------------------------------------------------- /config.h: -------------------------------------------------------------------------------- 1 | /* 2 | Config header for showkeys.c 3 | */ 4 | 5 | /* Display font, select a font using 'xfontsel -scaled' */ 6 | #define SK_FONT "-*-courier*-*-*-*-*-60-*-*-*-*-*-*-*" 7 | 8 | /* Display position, possible values: XOSD_top, XOSD_bottom */ 9 | #define SK_POS XOSD_bottom 10 | 11 | /* Display alignment, possible values: XOSD_right, XOSD_center, XOSD_left, */ 12 | #define SK_ALIGN XOSD_right 13 | 14 | /* Foreground color name, possible values, see: /etc/X11/rgb.txt*/ 15 | #define SK_FG "green" 16 | 17 | /* Outline color */ 18 | #define SK_OUTLINE "black" 19 | 20 | /* Shadow color */ 21 | #define SK_SHADOW "grey" 22 | 23 | /* changes the number of pixels the XOSD window is offset from the top 24 | or bottom of the screen. This is normally set to a value such as 48 25 | to avoid desktop-panels, such as those provided by GNOME or KDE. */ 26 | #define SK_OFFSET 2 27 | 28 | /* Shadow offset, pixel */ 29 | #define SK_SHOFFSET 3 30 | 31 | /* Hide display after N seconds, set to -1 to never hide */ 32 | #define SK_TIMEOUT 10 33 | 34 | /* By default, repeated key presses will be shown as "n 3 times". 35 | If you want to display each key press separately, change this 36 | to: #undef SK_NO_REPEATS. */ 37 | #define SK_NO_REPEATS 38 | 39 | -------------------------------------------------------------------------------- /keystack.c: -------------------------------------------------------------------------------- 1 | /* Showkeys 2 | Copyright Noufal Ibrahim 2011 3 | 4 | Licensed under the GPLv3 : http://www.gnu.org/licenses/gpl.txt 5 | 6 | Please see LICENSE file for complete license. 7 | */ 8 | 9 | #include 10 | #include 11 | #include 12 | #include 13 | 14 | #include "keystack.h" 15 | 16 | static void 17 | push_back(KeyStack *stack, int index) 18 | { 19 | int i; 20 | free(stack->keystrokes[0].keyname); 21 | for (i=0; ikeystrokes[i] = stack->keystrokes[i+1]; 23 | } 24 | 25 | KeyStack * 26 | create_keystack(int size) 27 | { 28 | int i; 29 | KeyStack *retval = NULL; 30 | KeyStroke *stack = NULL; 31 | 32 | stack = (KeyStroke *)malloc(sizeof(KeyStroke) * size); 33 | for (i=0; isize = size; 40 | retval->pos = -1; 41 | retval->keystrokes = stack; 42 | 43 | return retval; 44 | } 45 | 46 | void 47 | push(KeyStack *stack, char *keyname) 48 | { 49 | int index; 50 | KeyStroke *last; 51 | char *last_key; 52 | 53 | last = &stack->keystrokes[stack->pos]; 54 | last_key = last->keyname; 55 | index = stack->pos + 1; 56 | 57 | #ifdef SK_NO_REPEATS 58 | if (index && ! strcmp (last_key, keyname)) { 59 | /* If the same as the top of the stack, increment count */ 60 | last->times ++; 61 | } else { 62 | #endif 63 | /* Add a new entry */ 64 | if (index == stack->size) { 65 | push_back(stack, stack->pos); 66 | index = stack->size-1; 67 | } 68 | stack->keystrokes[index].keyname = keyname; 69 | stack->keystrokes[index].times = 1; 70 | stack->pos = index; 71 | #ifdef SK_NO_REPEATS 72 | } 73 | #endif 74 | } 75 | 76 | 77 | void 78 | display_keystack(KeyStack *stack) 79 | { 80 | int i; 81 | printf("---- Keystack ----\n"); 82 | for (i = 0; i <= stack->pos; i++) { 83 | printf("%s %d times\n", stack->keystrokes[i].keyname, stack->keystrokes[i].times); 84 | } 85 | printf("---- -------- ----\n\n"); 86 | } 87 | -------------------------------------------------------------------------------- /keystack.h: -------------------------------------------------------------------------------- 1 | /* Showkeys 2 | Copyright Noufal Ibrahim 2011 3 | 4 | Licensed under the GPLv3 : http://www.gnu.org/licenses/gpl.txt 5 | 6 | Please see LICENSE file for complete license. 7 | */ 8 | #define NKEYS 10 9 | 10 | typedef struct { 11 | char *keyname; 12 | int times; 13 | } KeyStroke; 14 | 15 | typedef struct { 16 | int size; 17 | int pos; 18 | KeyStroke *keystrokes; 19 | } KeyStack; 20 | 21 | 22 | 23 | KeyStack *create_keystack(); 24 | void push(KeyStack *, char *); 25 | void display_keystack(KeyStack *); 26 | 27 | 28 | -------------------------------------------------------------------------------- /showkeys.c: -------------------------------------------------------------------------------- 1 | /* Showkeys 2 | Copyright Noufal Ibrahim 2011 3 | 4 | Licensed under the GPLv3 : http://www.gnu.org/licenses/gpl.txt 5 | 6 | Please see LICENSE file for complete license. 7 | */ 8 | 9 | 10 | #define _GNU_SOURCE 11 | #include 12 | #include 13 | #include 14 | #include 15 | #include 16 | #include 17 | #include 18 | 19 | #include 20 | 21 | #include "showkeys.h" 22 | #include "keystack.h" 23 | #include "config.h" 24 | 25 | Display *d0, *d1; 26 | KeyStack *keystack; 27 | xosd *osd; 28 | 29 | 30 | int 31 | process_modifiers(KeySym ks, int * meta, int *ctrl, int *shift, int val) 32 | { 33 | int modifier_pressed = 0; 34 | switch(ks) { 35 | case XK_Shift_L: 36 | case XK_Shift_R: 37 | *shift = val; 38 | modifier_pressed = 1; 39 | break; 40 | case XK_Control_L: 41 | case XK_Control_R: 42 | *ctrl = val; 43 | modifier_pressed = 1; 44 | break; 45 | case XK_Alt_L: 46 | case XK_Alt_R: 47 | *meta = val; /* This is not accurate but it's correct for my keyboard mappings */ 48 | modifier_pressed = 1; 49 | break; 50 | } 51 | return modifier_pressed; 52 | } 53 | 54 | char * 55 | create_emacs_keyname(char *keyname, int meta, int ctrl, int shift) 56 | { 57 | char *retval; 58 | /* TBD: Handle <. > and others like that wehere XLookupString gives the right values */ 59 | /* printf("%d %d %d ", meta, ctrl, shift); */ 60 | asprintf(&retval, "%s%s%s%s", ctrl?"C-":"", meta?"M-":"", shift?"S-":"", keyname); 61 | /* printf(" %s\n",retval); */ 62 | return retval; 63 | } 64 | 65 | xosd * 66 | configure_osd(int lines) 67 | { 68 | xosd *osd; 69 | osd = xosd_create (NKEYS); 70 | 71 | xosd_set_font(osd, SK_FONT); 72 | xosd_set_pos(osd, SK_POS); 73 | xosd_set_align(osd, SK_ALIGN); 74 | xosd_set_colour(osd, SK_FG); 75 | xosd_set_outline_colour(osd, SK_OUTLINE); 76 | xosd_set_outline_offset(osd, SK_OFFSET); 77 | xosd_set_shadow_colour(osd, SK_SHADOW); 78 | xosd_set_shadow_offset(osd, SK_SHOFFSET); 79 | xosd_set_timeout(osd, SK_TIMEOUT); 80 | 81 | return osd; 82 | } 83 | 84 | void 85 | display_keystrokes(xosd *osd, KeyStack *stack) 86 | { 87 | int i; 88 | for(i = 0; i < NKEYS; i++) { 89 | if (stack->keystrokes[i].keyname) { 90 | if (stack->keystrokes[i].times == 1) { 91 | xosd_display(osd, i, XOSD_printf, "%s", stack->keystrokes[i].keyname); 92 | } else { 93 | xosd_display(osd, i, XOSD_printf, "%s %d times", stack->keystrokes[i].keyname, stack->keystrokes[i].times); 94 | } 95 | } 96 | } 97 | } 98 | 99 | void 100 | update_key_ring (XPointer priv, XRecordInterceptData *data) 101 | { 102 | static int meta = 0; 103 | static int ctrl = 0; 104 | static int shift = 0; 105 | xEvent *event; 106 | KeySym ks; 107 | char *display_string; 108 | char *ksname; 109 | if (data->category==XRecordFromServer) { 110 | event=(xEvent *)data->data; 111 | /* display_keystack(keystack); */ 112 | switch (event->u.u.type) { 113 | case KeyPress: 114 | ks = XKeycodeToKeysym(d0, event->u.u.detail, 0); 115 | ksname = XKeysymToString (ks); /* TBD: Might have to handle no symbol keys */ 116 | if (! process_modifiers(ks, &meta, &ctrl, &shift, 1)) { 117 | display_string = create_emacs_keyname(ksname, meta, ctrl, shift); 118 | push(keystack, display_string); 119 | display_keystrokes(osd, keystack); 120 | } 121 | break; 122 | case KeyRelease: 123 | ks = XKeycodeToKeysym(d0, event->u.u.detail, 0); 124 | process_modifiers(ks, &meta, &ctrl, &shift, 0); 125 | break; 126 | } 127 | } 128 | } 129 | 130 | 131 | int 132 | main() 133 | { 134 | XRecordContext xrd; 135 | XRecordRange *range; 136 | XRecordClientSpec client; 137 | 138 | osd = configure_osd(NKEYS); 139 | keystack = create_keystack(NKEYS); 140 | 141 | d0 = XOpenDisplay(NULL); 142 | d1 = XOpenDisplay(NULL); 143 | 144 | XSynchronize(d0, True); 145 | if (d0 == NULL || d1 == NULL) { 146 | fprintf(stderr, "Cannot connect to X server"); 147 | exit (-1); 148 | } 149 | 150 | client=XRecordAllClients; 151 | 152 | range=XRecordAllocRange(); 153 | memset(range, 0, sizeof(XRecordRange)); 154 | range->device_events.first=KeyPress; 155 | range->device_events.last=KeyRelease; 156 | 157 | xrd = XRecordCreateContext(d0, 0, &client, 1, &range, 1); 158 | 159 | if (! xrd) { 160 | fprintf(stderr, "Error in creating context"); 161 | exit (-1); 162 | } 163 | 164 | XRecordEnableContext(d1, xrd, update_key_ring, (XPointer)osd); 165 | 166 | XRecordProcessReplies (d1); 167 | 168 | 169 | XRecordDisableContext (d0, xrd); 170 | XRecordFreeContext (d0, xrd); 171 | 172 | 173 | XCloseDisplay(d0); 174 | XCloseDisplay(d1); 175 | exit(0); 176 | } 177 | -------------------------------------------------------------------------------- /showkeys.h: -------------------------------------------------------------------------------- 1 | /* Showkeys 2 | Copyright Noufal Ibrahim 2011 3 | 4 | Licensed under the GPLv3 : http://www.gnu.org/licenses/gpl.txt 5 | 6 | Please see LICENSE file for complete license. 7 | */ 8 | void update_key_ring (XPointer priv, XRecordInterceptData *data); 9 | char *create_emacs_keyname(char *, int, int, int); 10 | int process_modifiers(KeySym , int * , int *, int *, int); 11 | xosd *configure_osd(int); 12 | -------------------------------------------------------------------------------- /tests/osd-example.c: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | 5 | int main (int argc, char *argv[]) 6 | { 7 | xosd *osd; 8 | int i; 9 | 10 | osd = xosd_create (10); 11 | 12 | xosd_set_font(osd, "fixed"); 13 | xosd_set_colour(osd, "LawnGreen"); 14 | xosd_set_timeout(osd, 3); 15 | xosd_set_shadow_offset(osd, 1); 16 | 17 | 18 | for(i = 0; i < 10; i ++) { 19 | xosd_display (osd, i, XOSD_printf, "Example XOSD output %d", i); 20 | } 21 | 22 | for(i = 0; i < 10; i ++) { 23 | sleep(1); 24 | printf("."); 25 | xosd_scroll(osd, 2); 26 | } 27 | 28 | 29 | 30 | 31 | xosd_wait_until_no_display(osd); 32 | 33 | xosd_destroy (osd); 34 | 35 | return 0; 36 | } 37 | -------------------------------------------------------------------------------- /tests/record-attempt.c: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | #include 5 | 6 | #include 7 | #include 8 | #include 9 | #include 10 | 11 | Display *d0, *d1; 12 | const char *Yes = "YES"; 13 | const char *No = "NO"; 14 | const char *Unknown = "unknown"; 15 | XIC xic = NULL; 16 | 17 | static void 18 | dump (char *str, int len) 19 | { 20 | printf("("); 21 | len--; 22 | while (len-- > 0) 23 | printf("%02x ", (unsigned char) *str++); 24 | printf("%02x)", (unsigned char) *str++); 25 | } 26 | 27 | 28 | void 29 | foo (XPointer priv, XRecordInterceptData *data) 30 | { 31 | int *x = (int *)priv; 32 | printf("I've got a %d %d\n", *x, data->category); 33 | xEvent *event; 34 | char *foo; 35 | if (data->category==XRecordFromServer) { 36 | event=(xEvent *)data->data; 37 | if (event->u.u.type==KeyPress) { 38 | foo = XKeysymToString(XKeycodeToKeysym(d0, event->u.u.detail, 0)); 39 | printf(" It's a keypress %s\n", foo); 40 | } 41 | if (event->u.u.type==KeyRelease) { 42 | foo = XKeysymToString(XKeycodeToKeysym(d0, event->u.u.detail, 0)); 43 | printf(" It's a keyrelease %s\n", foo); 44 | } 45 | } 46 | } 47 | 48 | int 49 | main() 50 | { 51 | XRecordContext xrd; 52 | XRecordRange *range; 53 | XRecordClientSpec client; 54 | 55 | int x = 50; 56 | 57 | 58 | d0 = XOpenDisplay(NULL); 59 | d1 = XOpenDisplay(NULL); 60 | 61 | XSynchronize(d0, True); 62 | /* XSynchronize(display, True); */ 63 | if (d0 == NULL || d1 == NULL) { 64 | fprintf(stderr, "Cannot connect to X server"); 65 | exit (-1); 66 | } 67 | /* Start here */ 68 | client=XRecordAllClients; 69 | 70 | range=XRecordAllocRange(); 71 | memset(range, 0, sizeof(XRecordRange)); 72 | range->device_events.first=KeyPress; 73 | range->device_events.last=KeyRelease; 74 | 75 | xrd = XRecordCreateContext(d0, 0, &client, 1, &range, 1); 76 | 77 | if (! xrd) { 78 | fprintf(stderr, "Error in creating context"); 79 | exit (-1); 80 | } 81 | 82 | XRecordEnableContext(d1, xrd, foo, (XPointer)&x); 83 | 84 | XRecordProcessReplies (d1); 85 | 86 | 87 | XRecordDisableContext (d0, xrd); 88 | XRecordFreeContext (d0, xrd); 89 | 90 | 91 | XCloseDisplay(d0); 92 | XCloseDisplay(d1); 93 | exit(0); 94 | } 95 | -------------------------------------------------------------------------------- /tests/record-example.c: -------------------------------------------------------------------------------- 1 | /* 2 | * To enable record extension in Xorg/XFree86, add the following line in 3 | * Section "Module" 4 | * Load "record" 5 | */ 6 | 7 | #include 8 | #include 9 | #include 10 | #include 11 | #include 12 | #include 13 | #include 14 | #include 15 | #include 16 | #include 17 | 18 | /* for this struct, refer to libxnee */ 19 | typedef union { 20 | unsigned char type ; 21 | xEvent event ; 22 | xResourceReq req ; 23 | xGenericReply reply ; 24 | xError error ; 25 | xConnSetupPrefix setup; 26 | } XRecordDatum; 27 | 28 | /* 29 | * FIXME: We need define a private struct for callback function, 30 | * to store cur_x, cur_y, data_disp, ctrl_disp etc. 31 | */ 32 | Display *data_disp = NULL; 33 | Display *ctrl_disp = NULL; 34 | 35 | /* stop flag */ 36 | int stop = 0; 37 | 38 | void event_callback (XPointer, XRecordInterceptData*); 39 | 40 | int main (int argc, char **argv) 41 | { 42 | ctrl_disp = XOpenDisplay (NULL); 43 | data_disp = XOpenDisplay (NULL); 44 | 45 | if (!ctrl_disp || !data_disp) { 46 | fprintf (stderr, "Error to open local display!\n"); 47 | exit (1); 48 | } 49 | 50 | /* 51 | * we must set the ctrl_disp to sync mode, or, when we the enalbe 52 | * context in data_disp, there will be a fatal X error !!! 53 | */ 54 | XSynchronize(ctrl_disp,True); 55 | 56 | int major, minor; 57 | if (!XRecordQueryVersion (ctrl_disp, &major, &minor)) { 58 | fprintf (stderr, "RECORD extension not supported on this X server!\n"); 59 | exit (2); 60 | } 61 | 62 | printf ("RECORD extension for local server is version is %d.%d\n", major, minor); 63 | 64 | XRecordRange *rr; 65 | XRecordClientSpec rcs; 66 | XRecordContext rc; 67 | 68 | rr = XRecordAllocRange (); 69 | if (!rr) { 70 | fprintf (stderr, "Could not alloc record range object!\n"); 71 | exit (3); 72 | } 73 | 74 | rr->device_events.first = KeyPress; 75 | rr->device_events.last = MotionNotify; 76 | rcs = XRecordAllClients; 77 | 78 | rc = XRecordCreateContext (ctrl_disp, 0, &rcs, 1, &rr, 1); 79 | if (!rc) { 80 | fprintf (stderr, "Could not create a record context!\n"); 81 | exit (4); 82 | } 83 | 84 | if (!XRecordEnableContext (data_disp, rc, event_callback, NULL)) { 85 | fprintf (stderr, "Cound not enable the record context!\n"); 86 | exit (5); 87 | } 88 | 89 | while (stop != 1) { 90 | XRecordProcessReplies (data_disp); 91 | } 92 | 93 | XRecordDisableContext (ctrl_disp, rc); 94 | XRecordFreeContext (ctrl_disp, rc); 95 | XFree (rr); 96 | 97 | XCloseDisplay (data_disp); 98 | XCloseDisplay (ctrl_disp); 99 | return 0; 100 | } 101 | 102 | void event_callback(XPointer priv, XRecordInterceptData *hook) 103 | { 104 | /* FIXME: we need use XQueryPointer to get the first location */ 105 | static int cur_x = 0; 106 | static int cur_y = 0; 107 | 108 | if (hook->category != XRecordFromServer) { 109 | XRecordFreeData (hook); 110 | return; 111 | } 112 | 113 | XRecordDatum *data = (XRecordDatum*) hook->data; 114 | 115 | int event_type = data->type; 116 | 117 | BYTE btncode, keycode; 118 | btncode = keycode = data->event.u.u.detail; 119 | 120 | int rootx = data->event.u.keyButtonPointer.rootX; 121 | int rooty = data->event.u.keyButtonPointer.rootY; 122 | int time = hook->server_time; 123 | 124 | switch (event_type) { 125 | case KeyPress: 126 | /* if escape is pressed, stop the loop and clean up, then exit */ 127 | if (keycode == 9) stop = 1; 128 | 129 | /* Note: you should not use data_disp to do normal X operations !!!*/ 130 | printf ("KeyPress: \t%s\n", XKeysymToString(XKeycodeToKeysym(ctrl_disp, keycode, 0))); 131 | break; 132 | case KeyRelease: 133 | printf ("KeyRelease: \t%s\n", XKeysymToString(XKeycodeToKeysym(ctrl_disp, keycode, 0))); 134 | break; 135 | case ButtonPress: 136 | /* printf ("ButtonPress: /t%d, rootX=%d, rootY=%d", btncode, cur_x, cur_y); */ 137 | break; 138 | case ButtonRelease: 139 | /* printf ("ButtonRelease: /t%d, rootX=%d, rootY=%d", btncode, cur_x, cur_y); */ 140 | break; 141 | case MotionNotify: 142 | /* printf ("MouseMove: /trootX=%d, rootY=%d",rootx, rooty); */ 143 | cur_x = rootx; 144 | cur_y = rooty; 145 | break; 146 | case CreateNotify: 147 | break; 148 | case DestroyNotify: 149 | break; 150 | case NoExpose: 151 | break; 152 | case Expose: 153 | break; 154 | default: 155 | break; 156 | } 157 | 158 | printf (", time=%d\n", time); 159 | 160 | XRecordFreeData (hook); 161 | } 162 | --------------------------------------------------------------------------------