2014-06-26 16:48:13 +00:00
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---
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layout: post
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title: "Registering an enum type in GLib’s type system"
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2016-02-26 15:26:26 +00:00
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date: 2013-01-06 02:34:03
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2014-06-26 16:48:13 +00:00
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tags: [c, development, glib]
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permalink: /blog/2013/1/6/registering-an-enum-type-in-glib-s-type-system
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published: true
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author:
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name: Gergely Polonkai
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email: gergely@polonkai.eu
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---
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I faced a problem in my [GLib](https://developer.gnome.org/glib/) self-teaching
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project, [wMUD](https://github.com/gergelypolonkai/wmud) today. I wanted to
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register a signal for a `GObject`, whose handler should accept two `enum`
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parameters for which I had to register a new `GEnum` type in the `GObject` type
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system. However, the [documentation on this
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feature](https://developer.gnome.org/gobject/unstable/gtype-non-instantiable.html)
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(thanks for pointing out goes to hashem on `#gnome-hackers`) is not… uhm…
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obvious. Making the long story short, I have checked with the `GIO` sources for
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an example, and using that, I have created this small, working chunk:
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2015-04-27 09:00:04 +00:00
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{% gist gergelypolonkai/47794b6fb94484f8160b client-state.h %}
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2014-06-26 16:48:13 +00:00
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2015-04-27 09:00:04 +00:00
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{% gist gergelypolonkai/47794b6fb94484f8160b client-state.c %}
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2014-06-26 16:48:13 +00:00
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Still, it can be made more perfect by using the
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[glib-mkenums](http://developer.gnome.org/gobject/stable/glib-mkenums.html)
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tool. I will read through the GLib Makefiles tomorrow for some hints on
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this.
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2015-04-27 09:09:15 +00:00
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Edit: you can find the glib-mkenums solution [here]({% post_url 2014-08-16-registering-an-enum-type-in-glib-glib-mkenums-magic %}).
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