path: root/src/platformheaders/xcbfunctions/qxcbscreenfunctions.h
diff options
authorAlexander Volkov <>2015-09-10 14:44:52 +0300
committerShawn Rutledge <>2016-03-05 10:46:41 +0000
commit362b977e7c99d47c9c598cef946273089881fd81 (patch)
tree8605c0c0c3b13e38397ec0d9fe1e9482ac223f5f /src/platformheaders/xcbfunctions/qxcbscreenfunctions.h
parent992e762f66f6dd5ed2c5e369da77c7b3fdfcfd80 (diff)
Expose the number of X screen through the QXcbScreenFunctions
X screen corresponds to Qt virtual desktop, and RandR output corresponds to QScreen. There can be more than one X screen, so we need a way to get the number of X screen for QScreen, in particular for the right implementation of some methods in QX11Info. Change-Id: Ib5e38703bf11ae08bb283f26a7b7b15f1a5e8671 Reviewed-by: Shawn Rutledge <>
Diffstat (limited to 'src/platformheaders/xcbfunctions/qxcbscreenfunctions.h')
1 files changed, 56 insertions, 0 deletions
diff --git a/src/platformheaders/xcbfunctions/qxcbscreenfunctions.h b/src/platformheaders/xcbfunctions/qxcbscreenfunctions.h
new file mode 100644
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+++ b/src/platformheaders/xcbfunctions/qxcbscreenfunctions.h
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+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact:
+** This file is part of the plugins of the Qt Toolkit.
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see For further
+** information use the contact form at
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: and
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+#include <QtPlatformHeaders/QPlatformHeaderHelper>
+class QScreen;
+class QXcbScreenFunctions
+ typedef bool (*VirtualDesktopNumber)(const QScreen *screen);
+ static const QByteArray virtualDesktopNumberIdentifier() { return QByteArrayLiteral("XcbVirtualDesktopNumber"); }
+ static int virtualDesktopNumber(const QScreen *screen)
+ {
+ return QPlatformHeaderHelper::callPlatformFunction<int, VirtualDesktopNumber, const QScreen *>(virtualDesktopNumberIdentifier(), screen);
+ }