Details
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Bug
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Resolution: Invalid
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Not Evaluated
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None
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5.15
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None
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Linux/Wayland,
Description
I am using an arm development board for Linux to develop a software. Due to its complex layout, I use QML for layout. When I was using the camera that comes with QML, I found that the preview interface was blank. However, when I ran the code on Windows, it was previewed normally. Is there anything wrong with my development board? Then it is normal for me to preview using Creator, and the following is my code:
//QML 代码占位符 import QtQuick 2.9 import QtQuick.Controls 2.2 import QtQuick.Window 2.12 import QtMultimedia 5.12ApplicationWindow { visibility:Window.FullScreen // Show FullScreen visible: true width:1920 height: 1080 flags: Qt.Window | Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint//隐藏标题栏 //图片输出元素 VideoOutput { anchors.fill: parent source: camera.imageCapture } //摄像头元素 Camera { id: camera captureMode: Camera.CaptureViewfinder onError: { console.log("Camera error:", error) } }}
//Creator 代码占位符 #include "mainwindow.h" #include "ui_mainwindow.h" #include <QCameraInfo> #include <QFileDialog> #include <QDebug> #include <QMessageBox> #include <QProcess> #include <QTimer> #include <QMediaMetaData>MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); showFullScreen();//单纯使用这个也会在运行的时候隐藏一下状态栏,但是点一下鼠标就又出现了 setMaximumSize(1280, 720); // 去掉标题栏,去掉任务栏显示，窗口置顶 this->setWindowFlags(Qt::FramelessWindowHint | Qt::Tool | Qt::WindowStaysOnTopHint); QList<QCameraInfo> cameras = QCameraInfo::availableCameras(); if(cameras.count() > 0){ camera = new QCamera(cameras.at(0)); } viewfinder = new QCameraViewfinder(this); camera->setViewfinder(viewfinder); viewfinder->resize(600,600); imageCapture = new QCameraImageCapture(camera); camera->start(); }MainWindow::~MainWindow() { delete ui; }