QKeyEvent e(QEvent::KeyPress, Qt::Key_Up, Qt::NoModifier); QApplication::sendEvent(ui->spinBox, &e); } MainWindow::~MainWindow() { delete ui; } bool MainWindow::eventFilter(QObject *watched, QEvent *event) { if(watched == ui->spinBox) { if(event->type() == QEvent::KeyPres...
MoveTabToNewWindow NextEventMatchingMask OrderBack OrderFront OrderFrontRegardless OrderOut OrderWindow PerformClose PerformMiniaturize PerformWindowDrag PerformZoom PostEvent 打印 RecalculateKeyViewLoop RegisterForDraggedTypes RemoveChildWindow RemoveFrameUsingName RemoveTitlebarAccessoryViewControllerAtIndex ResetCursor...
window.addEventListener("message", event => { const origin = event.origin; // 发送消息的域名 const data = event.data; // 消息内容 if (origin === "https://domain-a.com") { console.log("Received message from domain-a:", data); }});使用 postMessage 进行跨域通信需要注意安全...
event_id: "select_media", return_type: 'media' }, '*'); }); const callBack = (e: any) => { if (e.data.selected_medias && e.data.selected_medias.length > 0) { 取消监听 (window as any).removeEventListener('message', callBack, false); ...
if(window.EventSource){//根据环境的不同,变更urlconsturl =config.host2;varthat=this;this.eventSource=newEventSource(`${url}/see`,{msg:this.curMessage});this.eventSource.onmessage = (e) =>{constmessage =JSON.parse(e.data);//this.messages.push(message);console.log("已接受到消息:", e...
// iframePage.html//回调函数functionreceiveMessageFromIndex(event){console.log('receiveMessageFromIndex',event)}//监听message事件window.addEventListener("message",receiveMessageFromIndex,false); 我们只需要在子页面监听message事件,并且设置好回调函数即可,来看看打印出来的event: ...
我们的event里有如下几个核心的属性: data 从其他 window 中传递过来的对象 origin 调用 postMessage 时消息发送方窗口的 origin . 这个字符串由 协议、“://“、域名、“ : 端口号”拼接而成 source 对发送消息的窗口对象的引用; 您可以使用此来在具有不同origin的两个窗口之间建立双向通信 ...
Learn about the Window.postMessage() method, including its syntax, code examples, specifications, and browser compatibility.
if (event.origin !== window.location.origin) return; // 只接受同源消息 EventBus.$emit('message', event.data); } }, beforeDestroy() { window.removeEventListener('message', this.handleMessage); } }; 接收消息: 在接收消息的组件中,使用事件总线监听并处理消息。 // Receiver...