[gst-devel] query gst_plugin_feature_get_type()

[René Stadler]

Am Freitag, den 22.12.2006, 21:53 -0800 schrieb ram kumar:
> hi,
>    When i go to definiton of this function 
> 
> gst_plugin_feature_get_type()the debugger points to
> 
> 
> G_DEFINE_ABSTRACT_TYPE (GstPluginFeature,
> gst_plugin_feature, GST_TYPE_OBJECT);
> 
> Iam not able to ascertain what exactly this function 
> 
> and the macro does...please tell me what exactly this 
> 
> function does...

This is usual boilerplate code for using the GObject system (which is
distributed with GLib).  It is fully documented, see:
http://developer.gnome.org/doc/API/2.0/gobject/gobject-Type-Information.html#G-DEFINE-ABSTRACT-TYPE:CAPS

The function call tells you that the GstPluginFeature object type is
derived from GstObject (GST_TYPE_OBJECT).  "Abstract" means that you
cannot create instances of that type; it is supposed to act as base
class for further derived types (in this case: GstElementFactory,
GstTypeFindFactory and GstIndexFactory).

-- 
Regards,
  René Stadler