Retrieving the error message

In Transact-SQL you can get the error number from @.@.Error, but is there
anything to get the message?
Here's an example that forces a FK error and tries to get a message for it
from the sysmessages table. The message contains all the parameters holders
instead of their values though. Anybody have any ideas?
DECLARE @.intID INT
DECLARE @.intError INT
DECLARE @.strErrorMessage VARCHAR(4000)
UPDATE OrderDetails SET OrderID = 0 WHERE OrderID = 42
SELECT @.intError = @.@.ERROR
IF @.intError <> 0
BEGIN
SELECT @.strErrorMessage = description FROM master.dbo.sysmessages WHERE
error = @.intError
PRINT 'Error Number:' + CAST(@.intError AS VARCHAR)
PRINT 'Error Message:' + @.strErrorMessage
ENDPlease ignore this post. I triple-posted it by accident.