[Bug 45212] Getting IPicture errors - not implemented, cannot connect

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=45212

--- Comment #17 from Fabian Maurer <dark.shadow4 at web.de> ---
> As a result of this the pointer to the handle is returned as a null.  So,
> there is nothing for the calls to findconnectionpoint will fail because of
> the null pointer.

Actually, that's not how it works. In face, I doubt the two things are even
related.
I don't want to go into too much detail here, but the endpoint stuff is for
registering a callback to IPicture, so it can notify when it's finished.
But the program requests a callback in the form of
33AD4ED2-6699-11CF-B70C-00AA0060D393 (IPictureBoxEvents) which wine doesn't
know.
It's a VB6 specific interface, and while I have no idea why oleaut32 would
accept that, I'm gonna write some tests to check that behavior tomorrow.

> So, not understanding at all how all of this fits into wine, is it save to
> say these .c files are used at build time for wine?

Sure, sources are compiled into a binary.

> If so, then overriding with oleaut32.dll wouldn't actually do anything would it?

Uh, no, I don't see how this would follow. It's replacing the wine binary with
the windows binary, sources don't matter for that.

> I don't understand at all how run time libraries work (dll for windows, so
> files for linux?).  From my old C experience, which is more than just a
> LITTLE bit rusty ;) I would have thought the .c files had to be included at
> compilation time.

Well, the sources are turned into a binary. But when you replace the binary, it
should work.

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