C

Qt Quick Ultralite multiscreen Example

Demonstrates how to use multiple screens in Qt Quick Ultralite.

Overview

The multiscreen example shows how a single Qt Quick Ultralite application can display content on separate screens.

First screen with "Qt for MCUs" text centered on a green background.

Second screen with "Qt for MCUs" text centered on a green background.

Target platforms

Infineon TRAVEO T2G

Project structure

The minimal example consists of only two files, CMakeLists.txt and multiscreen.qml.

The CMake project file contains a basic build script, and the multiscreen.qml defines the UI.

CMake project file

# Copyright (C) 2026 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial
cmake_minimum_required(VERSION 3.21.1)

project(multiscreen VERSION 0.0.1 LANGUAGES C CXX ASM)

find_package(QulApp)

if(QUL_PLATFORM MATCHES "autosar")
    qul_add_library(multiscreen)
else()
    qul_add_executable(multiscreen)
endif()

qul_add_qml_module(multiscreen
    URI MultiscreenApp
    QML_FILES multiscreen.qml
)

app_target_setup_os(multiscreen)
app_target_default_entrypoint(multiscreen multiscreen MODULE MultiscreenApp)

if(NOT CMAKE_CROSSCOMPILING AND NOT WIN32)
    add_custom_command(TARGET multiscreen
        COMMAND strip multiscreen -o multiscreen.stripped
        DEPENDS multiscreen)
endif()

Application UI

import QtQuick 2.15
import QtQuickUltralite.Layers 2.0

ApplicationScreens {
    Screen {
        backgroundColor: "#41CD52"
        ItemLayer {
            anchors.centerIn: parent
            depth: ItemLayer.Bpp32Alpha
            width: textPrimary.width
            height: textPrimary.height

            Rectangle {
                anchors.fill: parent
                color: "#41CD52"
            }

            Column {
                id: textPrimary
                anchors.centerIn: parent
                spacing: 5
                Text {
                    anchors.horizontalCenter: parent.horizontalCenter
                    font.pixelSize: 30
                    text: "Qt for MCUs"
                }
                Text {
                    anchors.horizontalCenter: parent.horizontalCenter
                    font.pixelSize: 20
                    text: "first screen"
                }
            }
        }
    }

    Screen {
        backgroundColor: "#41CD52"
        ItemLayer {
            z: 1
            anchors.centerIn: parent
            depth: ItemLayer.Bpp32Alpha
            width: textSecondary.width
            height: textSecondary.height

            Rectangle {
                anchors.fill: parent
                color: "#41CD52"
            }

            Column {
                id: textSecondary
                anchors.centerIn: parent
                spacing: 5
                Text {
                    anchors.horizontalCenter: parent.horizontalCenter
                    font.pixelSize: 30
                    text: "Qt for MCUs"
                }
                Text {
                    anchors.horizontalCenter: parent.horizontalCenter
                    font.pixelSize: 20
                    text: "second screen"
                }
            }
        }
    }
}

Files:

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