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Extend Mac OS X's Screenshots

Mac OS X has a variety of built in screenshot methods. Here's a look at a few that offer more versatility than the basic full-screen capture (Command-Shift-3):

• Press Command-Shift-4 and you'll get a crosshair cursor with which you can drag to select and capture a certain area of the screen.

• Press Command-Shift-4-Space to select the entire window that the cursor is over, clicking on the window will then capture it. The resulting screenshot will even get a nice drop shadow.

• Hold down the Space bar after dragging out a selection window to move your selection rectangle around on the screen.

• Hold down Shift after dragging out a selection to constrain the selection in either horizontal or vertical orientation, depending on the direction of your drag.

• Hold down Option after dragging out a selection to expand the selection window around a center point.

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YouTube Comes to iPhone and Apple TV

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As the iPhone nears release, Apple has unveiled another previously unannounced feature: a YouTube application that will download and play back YouTube videos directly on the iPhone. (Earlier, the company revealed that the iPhone would sport improved battery life and a glass - not plastic - screen; see "Apple Announces iPhone Changes," 2007-06-18.) Apple also released a promised update for the Apple TV that enables YouTube video playback (see "Apple TV Gains 160 GB Drive, YouTube Downloads," 2007-06-04).

YouTube (which is owned by Google) has been encoding its video library into H.264 format, so I'm assuming that the Apple TV and the iPhone are somehow tapping directly into the H.264 feeds, since normally YouTube delivers its content using Flash.

At one point, Apple's press release talks about H.264 video in the context of the iPhone's Wi-Fi capability, suggesting perhaps that YouTube downloads could be quite sizable. Using Wi-Fi, that's not a problem, but downloading over a cell data connection could be costly. Neither Apple nor AT&T have announced pricing for the iPhone's phone and data services.

The Apple TV 1.1 update also patches a potential security vulnerability in UPnP IGD (Internet Gateway Device Standardized Device Control Protocol) where a remote party could cause a denial-of-service attack. The update is available via the Apple TV itself, not as a standalone download. From the device's main screen, choose Settings, and then choose Update Software. It's unclear at this time whether other enhancements are included in the update.

 

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