Expose C++ object to Javascript in Qt with QtWebEngine

Question

With QtWebkit it is possible to expose C++ objects to Javascript via QWebFrame::addToJavaScriptWindowObject as described in https://stackoverflow.com/a/20685002/595937

Can the same thing be accomplished in Qt 5.4 using QtWebEngine?

Thomas McGuire · Accepted Answer · 2017-04-09 21:32:45Z

10

Exporting C++ objects to HTML/JS is not directly possible with QWebEngine.

Instead, the newly introduced QWebChannel provides a bridge between HTML/JS and C++. Have a look at the documentation, especially at the examples. There was also a quite good introductory talk about QWebChannel at this year's Qt Developer Days, which might also be of interest to you. The videos of the talks will go online in a few weeks.

edited Apr 9, 2017 at 21:32

answered Dec 16, 2014 at 21:19

Thomas McGuire

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2 Comments

Scheff's Cat Over a year ago

@ThomasMcGuire The link provided in your text is probably rotten. I believe this is the current working: QWebChannel (Qt5).

Thomas McGuire Over a year ago

@Scheff: Thanks for notifying me about the broken URL, I've updated it now.

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