Re: ActiveX, Loading File / Content

Alexander Adam <contact@xxxxxxxxxxx> wrote:
Thanks for trying to help me out, I really appreciate. I know the demo
with CBindStatusCallback to asynchron download something and it fires
a OnDataAvailable(). That works just fine and I am also able to catch
when loading has finished (pBytes is NULL) but how can I now take that
whole content and save it to a temporary file like IE would do and
also that next time when loading, its not downloading again but
taking the file from IE?

In IBindStatusCallback::GetBindInfo, specify BINDF_NEEDFILE and _omit_
other cache-related flags such as BINDF_GETNEWESTVERSION and
BINDF_PRAGMA_NO_CACHE. Unrelated to cache issue, always specify
BINDF_ASYNCHRONOUS | BINDF_ASYNCSTORAGE | BINDF_PULLDATA (I found that
to be the only combination that works reliably).

At some point, OnProgress will be called with status code of
BINDSTATUS_CACHEFILENAMEAVAILABLE where you have the cache file name.
After that, complete the download as you would normally: you can ignore
the data you are given in OnDataAvailable. Once the download completes,
you can read directly from cache file.
--
With best wishes,
Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not
necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
overhead. -- RFC 1925


.

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