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Perl in a Nutshell, 2nd Edition
book

Perl in a Nutshell, 2nd Edition

by Nathan Patwardhan, Ellen Siever, Stephen Spainhour
June 2002
Beginner content levelBeginner
759 pages
80h 42m
English
O'Reilly Media, Inc.
Content preview from Perl in a Nutshell, 2nd Edition

Name

SetStatusCallback

Synopsis

$inet->SetStatusCallback(  )

Initializes the callback routine used to return data about the progress of an asynchronous operation. This is one of the steps required to perform asynchronous operations; the complete procedure is:

# Use the INTERNET_FLAG_ASYNC when initializing
$params{'flags'}=INTERNET_FLAG_ASYNC;
$inet = new Win32::Internet(params);

# Initialize the callback routine
$inet->SetStatusCallback(  );

# Specify the context parameter (the last 1 in this case)
$inet->HTTP($http, "www.yahoo.com", "anonymous", "dada\@divinf.it", 
            80, 0, 1);

At this point, control returns immediately to Perl, and $inet->Error( ) will return 997, which means an asynchronous I/O operation is pending. Now, you can call:

$http->GetStatusCallback(1);

in a loop to verify what’s happening; see also GetStatusCallback.

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Publisher Resources

ISBN: 0596002416Errata Page