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date: Sun, 8 Jun 2008 21:07:08 -0700 (PDT),
group: microsoft.public.inetsdk.programming.webbrowser_ctl
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Re: Obtain URL from pluggable MIME filter
GetBindString() worked, thanks!
Question -- do I need to free the memory allocated by GetBindString()
using CoTaskMemFree() or some other function? The MSDN docs are
unclear about this.
On Jun 9, 4:52 am, "Igor Tandetnik" wrote:
> "Dave Brown" wrote in message
>
> news:63a806e1-31ae-487a-8b28-cf19ca4a14ac@q27g2000prf.googlegroups.com
>
> > I have a pluggable MIME Filter implementeed using
> > IInternetProtocolRoot, IInternetProtocolSink, etc..
>
> > The problem is - when the IInternetProtocolRoot::Start() method is
> > called, the "szUrl" parameter is the mime type, not the actual URL
> > that is being processed. Is there any way to get the actual URL ??
>
> Try IInternetBindInfo::GetBindString(BINDSTRING_URL). Another thing to
> try is to query the "real" protocol (one whose pointer arrives in
> PROTOCOLFILTERDATA) for IWinInetInfo and call
> QueryOption(INTERNET_OPTION_URL).
> --
> 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
date: Mon, 9 Jun 2008 12:05:42 -0700 (PDT)
author: Dave Brown
Re: Obtain URL from pluggable MIME filter
Dave Brown wrote:
> Question -- do I need to free the memory allocated by GetBindString()
> using CoTaskMemFree() or some other function? The MSDN docs are
> unclear about this.
It's somewhat complicated. GetBindString is designed to be able to
return an array of strings (e.g. it may return several MIME types in
response to BINDSTRING_ACCEPT_MIMES). So you pass an array of LPOLESTR
pointers and the size of this array. GetBindString returns the number of
entries it actually used in *pcElFetched, and allocates each string with
CoTaskMemAlloc. You should deallocate them with CoTaskMemFree.
Luckily, only one string is ever returned in response to BINDSTRING_URL,
which simplifies matters. You would do something like this:
LPOLESTR url = 0;
ULONG fetched = 0;
HRESULT hr = pIBI->GetBindString(BINDSTRING_URL, &url, 1, &fetched);
if (SUCCEEDED(hr) && fetched == 1) {
// Use url
CoTaskMemFree(url);
}
--
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
date: Mon, 9 Jun 2008 15:40:20 -0400
author: Igor Tandetnik
Re: Obtain URL from pluggable MIME filter
Awesome, thanks Igor!
On Jun 9, 12:40 pm, "Igor Tandetnik" wrote:
> Dave Brown wrote:
> > Question -- do I need to free the memory allocated by GetBindString()
> > using CoTaskMemFree() or some other function? The MSDN docs are
> > unclear about this.
>
> It's somewhat complicated. GetBindString is designed to be able to
> return an array of strings (e.g. it may return several MIME types in
> response to BINDSTRING_ACCEPT_MIMES). So you pass an array of LPOLESTR
> pointers and the size of this array. GetBindString returns the number of
> entries it actually used in *pcElFetched, and allocates each string with
> CoTaskMemAlloc. You should deallocate them with CoTaskMemFree.
>
> Luckily, only one string is ever returned in response to BINDSTRING_URL,
> which simplifies matters. You would do something like this:
>
> LPOLESTR url = 0;
> ULONG fetched = 0;
> HRESULT hr = pIBI->GetBindString(BINDSTRING_URL, &url, 1, &fetched);
> if (SUCCEEDED(hr) && fetched == 1) {
> // Use url
> CoTaskMemFree(url);
>
> }
>
> --
> 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
date: Mon, 9 Jun 2008 13:43:03 -0700 (PDT)
author: Dave Brown
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