File indexing completed on 2024-04-21 05:27:32

 /*
 SPDX-FileCopyrightText: 2014 Martin Gräßlin <mgraesslin@kde.org>
 
 SPDX-License-Identifier: GPL-2.0-or-later
 */
 #include <QCoreApplication>
 #include <xcb/xcb.h>
 
 xcb_screen_t *defaultScreen(xcb_connection_t *c, int screen)
 {
     for (auto it = xcb_setup_roots_iterator(xcb_get_setup(c)); it.rem; --screen, xcb_screen_next(&it)) {
         if (screen == 0) {
             return it.data;
         }
     }
 
     return nullptr;
 }
 
 xcb_window_t rootWindow(xcb_connection_t *c, int screen)
 {
     xcb_screen_t *s = defaultScreen(c, screen);
     if (!s) {
         return XCB_WINDOW_NONE;
     }
     return s->root;
 }
 
 /**
  * This app grabs the keyboard from X.
  * It is used from ksldtest to verify we report if grabbing failed when the keyboard has been grabbed by another
  * X Client. It needs to be another application, otherwise the grab cannot fail.
  **/
 int main(int argc, char **argv)
 {
     QCoreApplication app(argc, argv);
 
     // connect to xcb
     int screen = 0;
     xcb_connection_t *c = xcb_connect(nullptr, &screen);
     Q_ASSERT(c);
 
     xcb_grab_keyboard(c, 1, rootWindow(c, screen), XCB_CURRENT_TIME, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
     xcb_flush(c);
 
     const int exitCode = app.exec();
 
     xcb_ungrab_keyboard(c, XCB_CURRENT_TIME);
     xcb_flush(c);
     xcb_disconnect(c);
 
     return exitCode;
 }