I added gstreamer to the Nim GTK bindings once because someone asked for it, but he never came back
Indeed gstreamer is not that easy for gobject-introspection.
gst_structure_take() does currently not work for the Nim bindings, I guess the problem is that first parameter is a pointer to pointer (**) that can be NULL. Have never seen that for the other GTK bindings. For Nim we generally make parameters of type ** var ptr, as we have var parameters as known from Pascal. But var parameters can not be NULL.
Well I think I will make the bindings just ignore these function, then it compiles again.
But I still wonder: Makes passing NULL for the first parameter makes sense at all?
oldstr_ptr cannot be NULL. It’s
oldstr that can be NULL. The first argument always must point to a variable. That variable may contain the value NULL.
OK. For me it is still hard to understand the API doc.
Either newstr and the value pointed to by oldstr_ptr may be NULL
Either in conjunction with and? Have not seen this that often. And
oldstr_ptr ( [inout] [transfer: full] [nullable] )
Is nullable not indicating that oldstr_ptr itself can be NULL.
Well I will make this function skip for now, it is too hard for me currently.
Is there already some progress?
From my previous post the core message was that I assume that the nullable tag is wrong. I compared with some other GTK functions which seems to support my feelings.
But maybe I am still wrong, in that case I would have to modify the code which generates the bindings. In latest version 0.8.2 I just skip this function.
I think that’s the correct approach here. This is really just C API, I’m sure Nim already has something better than that. It’s similar to
What was the use-case someone was asking for it in Nim?
Not really, I never saw it used like that and wouldn’t know why one would want that
T** pointers nonetheless make sense and I’m sure you already handle that in other cases for optional
out parameters and
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