Unable to pass a D function member to a C callback

[Luh]

On Saturday, 2 November 2019 at 19:55:58 UTC, Dennis wrote:
> On Saturday, 2 November 2019 at 19:42:54 UTC, Luh wrote:
>> So I think I just can't. :(
>
> Is that `void* c` in the callback a context pointer by any 
> chance?
> That's a common thing in C callbacks precisely for purposes 
> like this.
> You can cast your class to a void* when you register the 
> callback and in the callback function cast it back to a class 
> and call process on that.
>
> I don't know what C library you're working with so can't give 
> you specifics.

Yup that's it !
Many thanks !