man SelectSaver () - save and restore selected file handle
NAME
SelectSaver - save and restore selected file handle
SYNOPSIS
use SelectSaver;
{
my $saver = new SelectSaver(FILEHANDLE);
# FILEHANDLE is selected
}
# previous handle is selected
{
my $saver = new SelectSaver;
# new handle may be selected, or not
}
# previous handle is selected
DESCRIPTION
A CWSelectSaver object contains a reference to the file handle that was selected when it was created. If its CWnew method gets an extra parameter, then that parameter is selected; otherwise, the selected file handle remains unchanged.
When a CWSelectSaver is destroyed, it re-selects the file handle that was selected when it was created.