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diff --git a/doc/qvfb.doc b/doc/qvfb.doc deleted file mode 100644 index 7bc154666..000000000 --- a/doc/qvfb.doc +++ /dev/null @@ -1,119 +0,0 @@ -/**************************************************************************** -** -** Qt/Embedded Virtual Framebuffer -** -** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. -** -** This file is part of the Qt GUI Toolkit. -** -** This file may be used under the terms of the GNU General -** Public License versions 2.0 or 3.0 as published by the Free -** Software Foundation and appearing in the files LICENSE.GPL2 -** and LICENSE.GPL3 included in the packaging of this file. -** Alternatively you may (at your option) use any later version -** of the GNU General Public License if such license has been -** publicly approved by Trolltech ASA (or its successors, if any) -** and the KDE Free Qt Foundation. -** -** Please review the following information to ensure GNU General -** Public Licensing requirements will be met: -** http://trolltech.com/products/qt/licenses/licensing/opensource/. -** If you are unsure which license is appropriate for your use, please -** review the following information: -** http://trolltech.com/products/qt/licenses/licensing/licensingoverview -** or contact the sales department at [email protected]. -** -** This file may be used under the terms of the Q Public License as -** defined by Trolltech ASA and appearing in the file LICENSE.QPL -** included in the packaging of this file. Licensees holding valid Qt -** Commercial licenses may use this file in accordance with the Qt -** Commercial License Agreement provided with the Software. -** -** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, -** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted -** herein. -** -**********************************************************************/ - -/*! \page emb-qvfb.html - -\title Qt/Embedded Virtual Framebuffer - -The virtual framebuffer allows Qt/Embedded programs to be developed on -a desktop machine, without switching between consoles and X11. - -The virtual framebuffer is located in \c $QTDIR/tools/qvfb. - -\section1 Using the Virtual Framebuffer - -\list 1 -\i Configure Qt/Embedded with the \c -qvfb argument and compile the library: - \code - ./configure -qvfb - make - \endcode -\i Compile \c qvfb as a normal Qt/X11 application and run it. Do \e not - compile it as a Qt/Embedded application. -\i Start a Qt/Embedded master application (i.e., construct - QApplication with the QApplication::GuiServer flag or use the \c - -qws command line parameter). You can specify to the server that - you wish to use the virtual framebuffer driver, e.g.: - \code - masterapp -qws -display QVFb:0 - \endcode -\i Qt/Embedded will autodetect qvfb, so you can omit the \c -display - command line parameter if you know that qvfb is running, and that - the Qt/Embedded library supports qvfb. (If this is not the case, - Qt/Embedded will write to the real framebuffer, and your X11 - display will be corrupted.) - -\endlist - -\c qvfb supports the following command line options: - -\table -\header \i Option \i Meaning -\row -\i \c -width \e width -\i the width of the virtual framebuffer (default: 240). -\row -\i \c -height \e height -\i the height of the virtual framebuffer (default: 320). -\row -\i \c -depth \e depth -\i the depth of the virtual framebuffer (1, 8 or 32; default: 8). -\row -\i \c -nocursor -\i do not display the X11 cursor in the framebuffer window. -\row -\i \c -qwsdisplay \e :id -\i the Qt/Embedded display id to provide (default: :0). -\endtable - -\section1 Virtual Framebuffer Design - -The virtual framebuffer emulates a framebuffer using a shared memory region -(the virtual frame buffer) and a utility to display the framebuffer in a -window (\c qvfb). The regions of the display that have changed are updated -periodically, so you will see discrete snapshots of the framebuffer rather -than each individual drawing operation. For this reason drawing problems -such as flickering may not be apparent until the program is run using a real -framebuffer. - -The target refresh rate can be set via the <b>View|Refresh Rate</b> -menu item. This will cause \c qvfb to check for updated regions more -frequently. The rate is a target only. If little drawing is being -done, the framebuffer will not show any updates between drawing -events. If an application is displaying an animation the updates will -be frequent, then the application and \c qvfb will compete for -processor time. - -Mouse and keyboard events are passed to the Qt/Embedded master process via -named pipes. - -The virtual framebuffer is a development tool only. No security issues have -been considered in the virtual framebuffer design. It should be avoided -in a production environment; do not configure production libraries with \c -qvfb. - -*/ |