On Sun, 2003-02-02 at 05:56, Ronald Bultje wrote:
> Hey all,
>
> what's the difference between g_param_spec_boxed(),
A "boxed" type - basically a pointer with copy/free. See
g_boxed_type_register_static. GdkRectangle, GtkSelectionData
are some of the standard GTK+ boxed types.
> g_param_spec_param()
A parameter whose value is a paran spec. Probably not what you want.
> and g_param_spec_object()?
A parameter whose value is a GObject derived type (like a GtkWidget,
a GdkWindow, a PangoLayout, etc.)
> In what cases should I use which of these?
> And what should I use in case of a GList*?
For GList, you probably want g_param_spec_pointer() - GObject has
no idea of composite type - an array of GtkWidget, a list of
GdkRectangle and that would be need to be there to have a meaningful
GList type.
Remember a GList by itself has no idea what contents of the
list. It's just a list of generic void *.
> I actually expected a
> g_param_spec_list() or so, since there is a g_param_spec_value_array(),
g_param_spec_value_array() refers to a parameter whose contents
are a GValueArray - an array of GValue (GValue is a variant type, like a
Python pickle or CORBA::Any.) See the GValueArray API.
> though it's unclear to me whether this applies to a C-array, GArray,
> GPtrArray, GByteArray or to all of them.
>
> There's lots of API documentation on internet, but no explanation of
> what it actually means. :-(.
Nobody will object if you submit patches :-)
Regards,
Owen
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