June 2002
Beginner
759 pages
80h 42m
English
SetStatusCallback
$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.