[PD-dev] how to use canvas_getcurrent() ?

[Tim Blechmann]

> always call it from the new() routine; otherwise the current canvas is
> undefined.  You can store the pointer for later (an object's parent
> canvas is guaranteed never to change.)

hm ... if something like this would be documented some way, it might
reduce my headaches when trying to explain this error ...
i assume, this behaviour is the same for all canvas functions exported
in m_pd.h? if so, a small comment in m_pd.h would definitely be useful
...

cheers ... tim

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