I don't actually know. It's what I was shown, so it's what I do. Generally though, leading underscores often indicate a meta-variable of some kind. Which would make sense in this case: you're referring to the idea of a blank (new) window, not an existing window named "blank".
no subject
Generally though, leading underscores often indicate a meta-variable of some kind. Which would make sense in this case: you're referring to the idea of a blank (new) window, not an existing window named "blank".