How to make an app without titlebar?

I'm quite new to developing on the Mac, I've only done iPhone programming until now. I'm trying to ma开发者_JAVA技巧ke an app that doesn't have a titlebar. I'd still like to allow the user to move the window around by clicking anywhere within the window and dragging. Is this possible, and if so, how can I get started on something like this? Thanks!

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You could make it a borderless window.

[myWindow setStyleMask:NSBorderlessWindowMask];