diff options
Diffstat (limited to 'doc/src/examples/activeqt/opengl.qdoc')
| -rw-r--r-- | doc/src/examples/activeqt/opengl.qdoc | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/doc/src/examples/activeqt/opengl.qdoc b/doc/src/examples/activeqt/opengl.qdoc new file mode 100644 index 0000000..05c9d08 --- /dev/null +++ b/doc/src/examples/activeqt/opengl.qdoc @@ -0,0 +1,145 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \page qaxserver-demo-opengl.html + + \title OpenGL in an HTML page + + \raw HTML + <SCRIPT LANGUAGE="JavaScript"> + function setRot( form ) + { + GLBox.setXRotation( form.XEdit.value ); + GLBox.setYRotation( form.YEdit.value ); + GLBox.setZRotation( form.ZEdit.value ); + } + </SCRIPT> + + <p /> + An OpenGL scene:<br /> + <object ID="GLBox" CLASSID="CLSID:5fd9c22e-ed45-43fa-ba13-1530bb6b03e0" + CODEBASE="http://qtsoftware.com/demos/openglax.cab"> + [Object not available! Did you forget to build and register the server?] + </object><br /> + + <form> + Rotate the scene:<br /> + X:<input type="edit" ID="XEdit" value="0" /><br /> + Y:<input type="edit" name="YEdit" value="0" /><br /> + Z:<input type="edit" name="ZEdit" value="0" /><br /> + <input type="button" value="Set" onClick="setRot(this.form)" /> + </form> + \endraw +*/ + +/*! + \example activeqt/opengl + \title OpenGL Example (ActiveQt) + + The OpenGL example demonstrates the use of the default factory + and QAxFactory::isServer(), and the implementation of an + additional COM interface using QAxBindable and QAxAggregated. + The server executable can run both as an ActiveX server and as a + stand-alone application. + + The ActiveX control in this example uses the QGlWidget class in + Qt to render an OpenGL scene in an ActiveX. The control exposes a few + methods to change the scene. + + The application uses the default factory as provided by the + QAXFACTORY_DEFAULT macro to expose the \c GLBox widget as an ActiveX + control. + \snippet examples/activeqt/opengl/main.cpp 0 + The implementation of \c main initializes the QApplication object, + and uses \c QAxFactory::isServer() to determine whether or not it is + appropriate to create and show the application interface. + \snippet examples/activeqt/opengl/main.cpp 1 + \snippet examples/activeqt/opengl/main.cpp 2 + \snippet examples/activeqt/opengl/main.cpp 3 + + The \c GLBox class inherits from both the \l QGLWidget class to be able + to render OpenGL, and from \l QAxBindable. + \snippet examples/activeqt/opengl/glbox.h 0 + The class reimplements the \l QAxBindable::createAggregate() function from QAxBindable + to return the pointer to a \l QAxAggregated object. + \snippet examples/activeqt/opengl/glbox.h 1 + The rest of the class declaration and the implementation of the OpenGL + rendering is identical to the original "box" example. + + The implementation file of the \c GLBox class includes the \c objsafe.h + system header, in which the \c IObjectSafety COM interface is defined. + \snippet examples/activeqt/opengl/glbox.cpp 0 + A class \c ObjectSafetyImpl is declared using multiple inheritance + to subclass the QAxAggregated class, and to implement the IObjectSafety + interface. + \snippet examples/activeqt/opengl/glbox.cpp 1 + The class declares a default constructor, and implements the queryInterface + function to support the IObjectSafety interface. + \snippet examples/activeqt/opengl/glbox.cpp 2 + Since every COM interface inherits \c IUnknown the \c QAXAGG_IUNKNOWN macro + is used to provide the default implementation of the \c IUnknown interface. + The macro is defined to delegate all calls to \c QueryInterface, \c AddRef + and \c Release to the interface returned by the controllingUnknown() function. + \snippet examples/activeqt/opengl/glbox.cpp 3 + The implementation of the \c IObjectSafety interface provides the caller + with information about supported and enabled safety options, and returns + \c S_OK for all calls to indicate that the ActiveX control is safe. + \snippet examples/activeqt/opengl/glbox.cpp 4 + The implementation of the \c createAggregate() function just returns a new + \c ObjectSafetyImpl object. + \snippet examples/activeqt/opengl/glbox.cpp 5 + + To build the example you must first build the QAxServer library. + Then run \c qmake and your make tool in \c + examples/activeqt/wrapper. + + The \l{qaxserver-demo-opengl.html}{demonstration} requires your + WebBrowser to support ActiveX controls, and scripting to be + enabled. + + In contrast to the other QAxServer examples Internet Explorer will not + open a dialog box to ask the user whether or not the scripting of the GLBox + control should be allowed (the exact browser behaviour depends on the security + settings in the Internet Options dialog). + + \snippet doc/src/examples/activeqt/opengl-demo.qdocinc 0 +*/ |