Return value from Q_INVOKABLE function In QtWebEngine

Question

Greeting

Is there anyway to get return value of Q_INVOKABLE function in Qt webEngine without passing callback function ? ( Qt Documentation ) . Like what we were doing in Qt WebKit .

More Information About Question

In QT4 and Qt WebKit i could get my function result as QVariant and cast it to JSON or any other type.

For example in my c++ project i have the following function that return application's version as QVariant .

Q_INVOKABLE QVariant getAppVersion();

I could simply use the following line in my HTML file and get result.

var applicationVersion = ApplicationObject.getAppVersion();

Now With Qt 5.5 and Qt WebEngine i have to use following form in order to get the result.

ApplicationObject.getAppVersion(myResultFunction);

function myResultFunction(result){
     console.log(result);
}

I'm using QT 5.5 And Visual Studio 2013 .

Thanks in Advance

Answer 1

Well, There is not other way. You have to pass callback function.

But with using promise in javascript , It gets alot better!

Good luck