Have you created custom interfaces using QML?

Yes, QML is a declarative language for creating user interfaces, especially within the Qt framework. It allows describing UI with simple syntax, supports animations, and reactive programming.

Example of a simple QML interface:

import QtQuick 2.15
import QtQuick.Controls 2.15

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

    Button {
        text: "Click me"
        anchors.centerIn: parent
        onClicked: {
            console.log("Button clicked")
        }
    }
}

Using QML enables quick creation of modern and responsive interfaces, integrating them with C++ application logic.