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Win32::ChangeNotify - Monitor events related to files and directories |
NAME
Win32::ChangeNotify - Monitor events related to files and directories
SUPPORTED PLATFORMS
- Windows
SYNOPSIS
require Win32::ChangeNotify;
$notify = Win32::ChangeNotify->new($Path,$WatchSubTree,$Events);
$notify->wait or warn "Something failed: $!\n";
# There has been a change.
DESCRIPTION
This module allows the user to use a Win32 change notification event object from Perl. This allows the Perl program to monitor events relating to files and directory trees.
The wait method and wait_all & wait_any functions are
inherited from the Win32::IPC module.
Methods
- $notify = Win32::ChangeNotify->new($path, $subtree, $filter)
-
Constructor for a new ChangeNotification object.
$pathis the directory to monitor. If$subtreeis true, then all directories under$pathwill be monitored.$filterindicates what events should trigger a notification. It should be a string containing any of the following flags (separated by whitespace and/or|).ATTRIBUTES Any attribute change DIR_NAME Any directory name change FILE_NAME Any file name change (creating/deleting/renaming) LAST_WRITE Any change to a file's last write time SECURITY Any security descriptor change SIZE Any change in a file's size
(
$filtercan also be an integer composed from theFILE_NOTIFY_CHANGE_*constants.) - $notify->close
-
Shut down monitoring. You could just
undef $notifyinstead (butcloseworks even if there are other copies of the object). This happens automatically when your program exits. - $notify->reset
-
Resets the ChangeNotification object after a change has been detected.
The object will become signalled again after the next change. (It is
OK to call this immediately after
new, but it is not required.) - $notify->wait
-
See Win32::IPC. Remember to call
resetafterwards if you want to continue monitoring.
Deprecated Functions and Methods
Win32::ChangeNotify still supports the ActiveWare syntax, but its use is deprecated.
FindFirst($Obj,$PathName,$WatchSubTree,$Filter)
-
Use
$Obj = Win32::ChangeNotify->new($PathName,$WatchSubTree,$Filter)
instead.
- $obj->
FindNext()
-
Use
$obj->resetinstead. - $obj->
Close()
-
Use
$obj->closeinstead.
AUTHOR
Christopher J. Madsen <chris_madsen@geocities.com>
Loosely based on the original module by ActiveWare Internet Corp., http://www.ActiveWare.com
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Win32::ChangeNotify - Monitor events related to files and directories |