@Dave-F You're Welcome :) Then you can use QWebEngineUrlRequestInterceptor I guess.

@maximo Did you finally submit an app to the Mac App store and which web incarnation of Qt did you use ?

I found the solution. Not only can you call the HTML5 postMessage() API to pass messages back and form from/to the IFRAME to the parent document, but Qt's version of WebKit have lax security controls compared to Chrome and do allow you to do the following in the IFRAME's Javascript. The trick is the window.parent.[whatever] -- something that Chrome won't let you do with stuff accessed with file:// (local files).

$(document).ready(function(){ if (window.parent.cpp) { var cpp = window.parent.cpp; // do something with C++ here through the cpp object } });

@maximo the problem is that page`s url is not changing when song data changes. I solved the problem by checking song data using a timer and emiting my own signal.

I solved this.
I moved everything related to the serial port into a separate class SerialWorker and moved it to a separate thread.

QThread* serialthread = new QThread; SerialWorker* serialworker = new SerialWorker(); serialworker->moveToThread(serialthread); connect(serialthread, SIGNAL(started()), serialworker, SLOT(InitSerialPort())); serialthread->start(); connect(serialworker, SIGNAL(NewProto(QByteArray)), this, SLOT(ProtocolInterpreter(QByteArray))); connect(this, SIGNAL(SendRS(QByteArray)) , serialworker, SLOT(writeData(QByteArray)));

This works as supposed. Serial port is now more or less very responsive.
WebKit is still blocking the GUI thread sometimes but thats not as much an issue as the serial port not responding.

Yes you have everything you need in Qt to do that, however there are other projects like QHttp that you could use directly.

Hope it helps

guess it's not actual anymore, but having same issue with 5.6.0

to resolve it you can add following into your qtwebkit/Source/WebCore/DerivedSources.pri

enable?(MEDIA_STREAM) {
IDL_BINDINGS +=
$$PWD/Modules/mediastream/MediaStream.idl
### you might need some others idl from this folder too
}

and search for generateBindings.commands in same file and add "--include Modules/mediastream"

Hi @keya,
Yes it can be done. If you are using QWebView it can be done by using evaluateJavaScript for both QWebframe and QWebElement.

Do you have an antivirus running ? Sometime they can interfere when something creates an executable.

In any case, modifying configure.bat should not be needed

@p3c0
Yes, thanks.
I found this example. And he is works.

http://doc.qt.io/qt-5/qtwebview-minibrowser-example.html

And I found - Webengine is not supported on android and not with MinGW either.