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Progress bar to downloading with WinHttp
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Marcin Domaslawski
Dec 13, 2006, 7:10:23 AM12/13/06
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Hi,
I use WinHttp to download files/pages from http or https sites. I need an
progress bar but I can't find out how to get size of file which will be
downloaded.
I use WinHttp to download files/pages from http or https sites. I need an
progress bar but I can't find out how to get size of file which will be
downloaded.
I thought about WinHttpQueryHeaders and WINHTTP_QUERY_CONTENT_LENGTH but it
returns NULL and 12150 error code (I tried it on downloading EXE file).
Any idea ?
Marcin Domaslawski
jim kane
Dec 13, 2006, 9:53:46 PM12/13/06
to
my approach is to call
WinHttpQueryHeaders on the hRequest with parameters
WinHttp_Query_Raw_Headers_CRLF
WinHttp_header_Name_By_Index
0, !null buffer pointer
&BufSize
WinHttp_No_header_Index )
WinHttpQueryHeaders on the hRequest with parameters
WinHttp_Query_Raw_Headers_CRLF
WinHttp_header_Name_By_Index
0, !null buffer pointer
&BufSize
WinHttp_No_header_Index )
To get the needed buffer size, allocate and then call again with a proper
pointer.
Then parse the buffer (case insensitive) for several headers I need
including 'Content-Length:'
Jim Kane
"Marcin Domaslawski" <mil...@wp.pl> wrote in message
news:eloqkd$kgl$1...@atlantis.news.tpi.pl...
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