WebEngine Widgets Minimal Example▲
https:// Widgets Minimal Example demonstrates how to use https:// to render a web page. It shows the minimum amount of code needed to load and display an HTML page, and can be used as a basis for further experimentation.
Running the Example▲
To run the example from http://, open the Welcome mode and select the example from Examples. For more information, visit http://.
The Code▲
We first define a commandLineUrlArgument function that returns the URL to open. This is either the first positional argument given on the command line, or https://www.qt.io as a fallback.
#include <QApplication>
#include <QWebEngineView>
QUrl commandLineUrlArgument()
{
const QStringList args = QCoreApplication::arguments();
for (const QString &arg : args.mid(1)) {
if (!arg.startsWith(QLatin1Char('-')))
return QUrl::fromUserInput(arg);
}
return QUrl(QStringLiteral("https://www.qt.io"));
}In the main function we first set the https:// property. This affects the locations where Qt WebEngine stores persistent and cached data (see also https:// and https://).
We also set the https:// attribute. This lets the web view automatically scale on high-dpi displays.
Next, we instantiate a https:// and a https://. The URL to load is taken from commandLineUrlArgument and loaded by calling https://. The view widget is given a reasonable default size, and shown. Finally, https://() launches the main event loop.
int main(int argc, char *argv[])
{
QCoreApplication::setOrganizationName("QtExamples");
QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
QApplication app(argc, argv);
QWebEngineView view;
view.setUrl(commandLineUrlArgument());
view.resize(1024, 750);
view.show();
return app.exec();
}Requirements▲
The example requires a working internet connection to render the http://. An optional system proxy should be picked up automatically. However, for proxies that require a username or password, you need to connect to https://.
https:// uses the https:// to compose the page. Therefore, OpenGL support is required.