> On Tue, 2006-09-19 at 11:43 +0200, Johannes Schmid wrote:
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>>
>> Hi!
>>
>> I tried out the examples in gtkmm to find out if they are able to handle
>> their GTypenames correclty. Unfortunately they do not:
>>
>> std::cout << g_type_name(get_type()) << std::endl;

Maybe get_type() isn't returning what we think it's returning, but I'm
fairly sure that custom gtypes are being created.

>> in the cellrenderercustom example just gives me
>> "gtkmm__GtkCellRenderer". But of course g_object_new(type) will give not
>> give me a custom but a standart CellRenderer.
>>
>> Anyway, I still need something that gives me a custom type that
>> g_object_new can handle.
>
> i am confused. since g_object_new cannot possibly instantiate a C++
> object, what is the value of get_type() returning a value that can be
> used at the C level?
>
> you can't create C++ objects (the ones that gtkmm is composed of) from C
> without a *lot* more glue code (eg. factory functions declared extern
> "C" that return each type of object as a gpointer etc etc)

But maybe we really can make it work, by registering an appropriate init
function for our new GType. It would be clever though.

Murray Cumming
[EMAIL PROTECTED]
www.murrayc.com
www.openismus.com

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