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Using GTK+ with Broadway

Using GTK+ with Broadway — HTML-specific aspects of using GTK+

Using GTK+ with Broadway

The GDK Broadway backend provides support for displaying GTK+ applications in a web browser, using HTML5 and web sockets. To run your application in this way, select the Broadway backend by setting GDK_BACKEND=broadway. Then you can make your application appear in a web browser by pointing it at Note that you need to enable web sockets in your web browser.

You can choose a different port from the default 8080 by setting the BROADWAY_DISPLAY environment variable to the port that you want to use.

It is also possible to use multiple GTK+ applications in the same web browser window, by using the Broadway server, broadwayd, that ships with GTK+. To use broadwayd, start it like this:

broadwayd :5

Then point your web browser at Start your applications like this:


Broadway-specific environment variables

BROADWAY_DISPLAY Specifies the Broadway display number. The default display is 1. The display number determines the port to use when connecting to a Broadway application via the following formula:

        port = 8080 + (display - 1)

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