forked from AuroraMiddleware/gtk
37 lines
1.2 KiB
Markdown
37 lines
1.2 KiB
Markdown
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# Using GTK with Broadway {#gtk-broadway}
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The GDK Broadway backend provides support for displaying GTK
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applications in a web browser, using HTML5 and web sockets. To run
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your application in this way, select the Broadway backend by setting
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`GDK_BACKEND=broadway`. Then you can make your application appear in
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a web browser by pointing it at `http://127.0.0.1:8080`. Note that
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you need to enable web sockets in your web browser.
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You can choose a different port from the default 8080 by setting
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the `BROADWAY_DISPLAY` environment variable to the port that you
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want to use.
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It is also possible to use multiple GTK applications in the same
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web browser window, by using the Broadway server, `broadwayd`, that
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ships with GTK. To use broadwayd, start it like this:
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```
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broadwayd :5
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```
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Then point your web browser at `http://127.0.0.1:8085`.
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Start your applications like this:
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```
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GDK_BACKEND=broadway BROADWAY_DISPLAY=:5 gtk4-demo
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```
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## Broadway-specific environment variables {#broadway-envar}
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### BROADWAY_DISPLAY
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Specifies the Broadway display number. The default display is 0.
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The display number determines the port to use when connecting
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to a Broadway application via the following formula:
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`port = 8080 + display`
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