<![CDATA[QOpenGLWidget embedded in qml]]>Hello,
I have a QOpenGLWidget class, how can it be embedded in qml? I use qmlRegisterType(), but I got a segmentation fault. Below it's some code.

class MyGLWidget: public QOpenGLWidget
{
	Q_OBJECT
public:
	explicit MyGLWidget(QWidget* parent = NULL);
	virtual ~MyGLWidget();
}

main.cpp

int main(int argc, char *argv[])
{
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
    QApplication app(argc, argv);

    qmlRegisterType<MyGLWidget>("MyClass", 1, 0, "MyClass");
    QQuickView view(QUrl("qrc:/main.qml"));
    view.show();

    return app.exec();
}

main.qml:

import QtQuick 2.8
import MyClass 1.0

Item {
    width: 800
    height: 600

    MyClass {
        id: glWindow
    }
}

QT version 5.14.2

]]>https://forum.qt.io/topic/152897/qopenglwidget-embedded-in-qmlRSS for NodeThu, 05 Nov 2026 09:44:53 GMTWed, 13 Dec 2023 06:19:38 GMT60<![CDATA[Reply to QOpenGLWidget embedded in qml on Fri, 15 Dec 2023 07:40:37 GMT]]>@JoeCFD Thanks. I'll study new class and transport my QOpenGLWidget class to QOpenGLFunctions.

]]>https://forum.qt.io/post/783254https://forum.qt.io/post/783254Fri, 15 Dec 2023 07:40:37 GMT<![CDATA[Reply to QOpenGLWidget embedded in qml on Wed, 13 Dec 2023 17:11:34 GMT]]>@Mavis I guess you are trying to use opengl raw code in qml. If my guess is correct, you can create a
class CustomOpenGLItem : public QQuickItem, protected QOpenGLFunctions
and put your raw code inside and you can add this class in qml code.
I do not think you are able to add QOpenGLWidget to qml directly.

 qmlRegisterType<CustomOpenGLItem>("CustomOpenGLItem", 1, 0, "CustomOpenGLItem");

=============
import QtQuick 2.15
import CustomOpenGLItem 1.0

ApplicationWindow {
    visible: true
    width: 400
    height: 300
    title: "OpenGL in QML Example"

    CustomOpenGLItem {
        anchors.fill: parent
    }
}
]]>https://forum.qt.io/post/783006https://forum.qt.io/post/783006Wed, 13 Dec 2023 17:11:34 GMT