XRecord 示例
最近做但按键绑定，用到了 XRecord。但其的示例程序很难找，故在此记录一下，以便日后温习。
XRecord 是 xlib 的一个扩展，在 xtest 扩展中。下面的程序主要监听按键与鼠标事件，其它的事件可以根据需要添加。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | /** * Author: jouyouyun <jouyouwen717@gmail.com> * Maintainer: jouyouyun <jouyouwen717@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see <http://www.gnu.org/licenses/>. **/#include <glib.h>#include <X11/Xlib.h>#include <X11/extensions/record.h>static void event_cb (XPointer user_data, XRecordInterceptData *hook);int main (int argc, char *argv[]){ Display *ctrl_disp = XOpenDisplay(NULL); Display *data_disp = XOpenDisplay(NULL); if ( !ctrl_disp || !data_disp ) { g_warning ("Unable to connect to X11 display!"); return -1; } gint major, minor, dummy; if ( !XQueryExtension (ctrl_disp, "XTEST", &major, &minor, &dummy) ) { g_warning ("XTest extension missing!"); return -1; } if ( !XRecordQueryVersion (ctrl_disp, &major, &minor) ) { g_warning ("Failed to obtain xrecord version!"); return -1; } XSynchronize(ctrl_disp, True); XFlush (ctrl_disp); XRecordRange *range = XRecordAllocRange (); /* * 设定事件监听的范围 * 监听 first ~ last 之间的事件 */ range->device_events.first = KeyPress; range->device_events.last = ButtonRelease; XRecordClientSpec spec = XRecordAllClients; XRecordContext context = XRecordCreateContext ( data_disp, 0, &spec, 1, &range, 1 ); if ( !context ) { g_warning ("Failed to create context!"); return -1; } if ( !XRecordEnableContext(data_disp, context, event_cb, NULL) ) { g_warning ("Failed to enable context!"); return -1; } /* if ( !XRecordEnableContextAsync (data_disp, context, event_cb, NULL) ) { g_warning ("Failed to enable context!"); return -1; } XRecordProcessReplies (data_disp); */ XRecordDisableContext(data_disp, context); XRecordFreeContext (data_disp, context); XFree(range); XCloseDisplay (data_disp); XCloseDisplay (ctrl_disp); return 0;}static voidevent_cb (XPointer user_data, XRecordInterceptData *hook){ if ( hook->category != XRecordFromServer ) { g_warning ("Data not from server!"); return; } int event_type = hook->data[0]; KeyCode keycode = hook->data[1]; g_print ("Intercepted event type: %d, code: %d\n", event_type, keycode); switch (event_type) { case KeyPress: g_print ("key press event!\n"); break; case KeyRelease: g_print ("key release event!\n"); break; case ButtonPress: g_print ("button press event!\n"); break; case ButtonRelease: g_print ("button release event!\n"); break; default: /* FIXME: other events grab */ break; }} |
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