QT: c++ 中通过objectName访问qml中的对象

来源：互联网发布：centos 个人编辑：程序博客网时间：2024/06/08 18:23

http://blog.chinaunix.net/uid-12664992-id-129943.html

// c++
=================================================
#include <QApplication>

#include <QDeclarativeView>

#include <QDeclarativeContext>

#include <QObject>

#include <QGraphicsObject>

#include <QDeclarativeItem>


int main(int argc, char *argv[]){    QApplication app(argc, argv);    QDeclarativeView view;     view.setSource(QUrl::fromLocalFile("main.qml"));     view.show();     QDeclarativeItem *item = view.rootObject()->findChild<QDeclarativeItem*>("myRect");     if (item) {         item->setProperty("color", QColor(Qt::yellow));     }     return app.exec(); }

====================================
// qml 界面显示   main.qml
===================================
import Qt 4.7 Item {     width: 200; height: 200     Rectangle {         anchors.fill: parent         color: "red"         objectName: "myRect"     } }

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