qt-everywhere-src-5.15.1/qtdeclarative/examples/quick/window/AllScreens.qml

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import QtQuick 2.3
import QtQuick.Window 2.3
import "../shared" as Shared

Column {
    id: root
    spacing: 8

    Shared.Label {
        text: "Total number of screens: " + screenInfo.count
        font.bold: true
    }

    Flow {
        spacing: 12
        width: parent.width

        Repeater {
            id: screenInfo
            model: Qt.application.screens
            Shared.Label {
                required property string name
                required property int virtualX
                required property int virtualY
                required property int width
                required property int height

                lineHeight: 1.5
                text: name + "\n" + virtualX + ", " + virtualY + " " + width + "x" + height
            }
        }
    }

    Component.onCompleted: {
        var screens = Qt.application.screens;
        for (var i = 0; i < screens.length; ++i)
            console.log("screen " + screens[i].name + " has geometry " +
                        screens[i].virtualX + ", " + screens[i].virtualY + " " +
                        screens[i].width + "x" + screens[i].height)
    }
}