qml窗口句柄的获取以及QWidget嵌入到QML窗口

#include <QGuiApplication> #include <QQmlApplicationEngine> #include <QApplication> #include <QWidget> #include <QWindow> #include <QLabel> #include <QLineEdit> #include <QPushButton> #include <QDebug> #pragma execution_character_set("utf-8") int main(int argc, char *argv[]) { QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling); QApplication app(argc, argv);//因为要创建widget，只能使用QApplication QQmlApplicationEngine engine; engine.load(QUrl(QStringLiteral("qrc:/main.qml"))); if (engine.rootObjects().isEmpty()) return -1; QObject *QmlObj=engine.rootObjects().first();//获取QMl的源对象 QWindow *QmlWindow=qobject_cast<QWindow *>(QmlObj);//获取qml在的源窗口 QmlWindow->setTitle("闻天语");//设置一个窗口标签，确认自己拿到的窗口句柄就是自己想要的 WId parent_HWND = QmlWindow->winId(); //Qml窗口的句柄 QWidget Widget; //新建一个Widget Widget.setGeometry(0,0,180,180);//设置widget的大小 Widget.setStyleSheet("background-color: lightgray; color: naviy;");//设置风格，方便辨识 Widget.setProperty("_q_embedded_native_parent_handle",QVariant(parent_HWND));//给widget父对象句柄赋值 QLabel Label("this is Widget",&Widget); //在widget中添加一个标签 Label.setGeometry(0,0,140,40); //标签属性设置 QLineEdit Edit("",&Widget); //添加输入框 Edit.setGeometry(0,50,100,20); QPushButton Btn("send",&Widget); //添加按钮 Btn.setGeometry(100,100,60,20); Widget.winId();//必须调用，才能为widget创建句柄，否则将会失败 Widget.windowHandle()->setParent(QmlWindow);//同样是设置父窗口 Widget.show(); if(Widget.isModal())//判断是否是模态对话框 { qDebug()<<"model"<<endl; }else{ qDebug()<<"not model"<<endl; } return app.exec(); }