use Win32::API 0.20;

# just for completeness...
use constant SW_HIDE => 0;
use constant SW_SHOWNORMAL => 1;

# the API we need
my $GetConsoleTitle = new Win32::API('kernel32', 'GetConsoleTitle', 'PN', 'N');
my $SetConsoleTitle = new Win32::API('kernel32', 'SetConsoleTitle', 'P', 'N');
my $FindWindow = new Win32::API('user32', 'FindWindow', 'PP', 'N');
my $ShowWindow = new Win32::API('user32', 'ShowWindow', 'NN', 'N');

# save the current console title
my $old_title = " " x 1024;
$GetConsoleTitle->Call( $old_title, 1024 );

# build up a new (fake) title
my $title = "PERL-$$-".Win32::GetTickCount();

# sets our string as the console title
$SetConsoleTitle->Call( $title );

# sleep 40 milliseconds to let Windows rename the window
Win32::Sleep(40);

# find the window by title
$hw = $FindWindow->Call( 0, $title );

# restore the old title
$SetConsoleTitle->Call( $old_title );

# hide the console!
$ShowWindow->Call( $hw, SW_HIDE );

# sleep one second, then show the console again

sleep(1);
$ShowWindow->Call( $hw, SW_SHOWNORMAL );