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57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
/* This file is part of the KDE project
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Copyright (C) 2005 Lubos Lunak <l.lunak@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <X11/Xlib.h>
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/*
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Return 0 when KDE is running, 1 when KDE is not running but it is possible
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to connect to X, 2 when it's not possible to connect to X.
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*/
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int main()
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{
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Display* dpy = XOpenDisplay(NULL);
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if (dpy == NULL) {
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return 2;
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}
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Atom atom = XInternAtom(dpy, "_KDE_RUNNING", False);
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if (XGetSelectionOwner(dpy, atom) != None) {
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XCloseDisplay(dpy);
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return 0;
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}
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// if ksmserver is not started yet check for the X11 atom that startkde sets
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Atom type = None;
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int format = 0;
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unsigned long nitems = 0;
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unsigned long after = 0;
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unsigned char* data = NULL;
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const int kde_full_session_status = XGetWindowProperty(
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dpy, RootWindow(dpy, 0),
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XInternAtom(dpy, "KDE_FULL_SESSION", False),
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0, 0, False, AnyPropertyType, &type, &format, &nitems, &after, &data
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);
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const bool kde_running = (kde_full_session_status == Success && data);
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if (data) {
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XFree(data);
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}
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XCloseDisplay(dpy);
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if (kde_running) {
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return 0;
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}
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return 1;
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}
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