[Libreoffice] how to acquire an ScDocument reference "from scratch"

[Kevin Hunter]

Hello List,

I'm trying to get hold of an ScDocument "from scratch".  I have naively 
attempted to replicate another section of code, but for the life of me 
can't figure out what I'm missing.  My code crashes with a SIGSEGV on 
this line:

aDocShell = new ScDocShell();

I think I've boiled it down to a null pointer dereference (see attached, 
please), but that implies the existing code is incorrect, which I'm not 
yet ready to admit.

Any pointers very welcome.

Thanks,

Kevin
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