利用QML实现透明窗口[qt5]

<p>mainwindow.h</p>

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QDeclarativeView>

class MainWindow: public QDeclarativeView
{
    Q_OBJECT
public:
    MainWindow(QWidget * p=0);
    ~MainWindow();
};

#endif

mainwindow.cpp

#include "mainwindow.h"

MainWindow::MainWindow(QWidget *p)
    :QDeclarativeView(p)
{
    // transparent background
    this->setAttribute(Qt::WA_TranslucentBackground);
    this->setStyleSheet("background: transparent;");

    // no window decorations

    setWindowFlags(Qt::FramelessWindowHint);

    // set QML
    setSource(QUrl("main.qml"));
}

MainWindow::~MainWindow()
{

}

main.pro

QT += core gui widgets declarative 

TARGET = main
TEMPLATE = app


SOURCES += main.cpp\
            m