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/*
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 pointer from X.
* It is used from ksldtest to verify we report if grabbing failed when the pointer 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);
const uint8_t events = XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION;
xcb_grab_pointer(c, 1, rootWindow(c, screen), events, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, XCB_WINDOW_NONE, XCB_CURSOR_NONE, XCB_CURRENT_TIME);
xcb_flush(c);
const int exitCode = app.exec();
xcb_ungrab_pointer(c, XCB_CURRENT_TIME);
xcb_flush(c);
xcb_disconnect(c);
return exitCode;
}
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