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QuickTime volume control in the Finder Desktop
The following was submitted to me via email, and it's an interesting tidbit. I'm sure everyone knows that you can play MP3's in the Finder's column view mode, but did you know that the volume was keyboard controllable and has a "super loud" mode? Here's the email...
I was listening to an MP3 in column preview mode and wanted to select it and some others using the keyboard. So I hit the shift and up arrow keys and the volume started to change! Playing around with it, the up and down arrows adjust the volume, but the shift and up arrow can make the volume even louder (think Spinal Tap's "11"). It appears that the quality starts to suffer using the shift key. Using the up or down arrow alone will return things to the normal scale.
I knew that the arrow keys would control the volume, but I had never thought to try a shifted arrow key. Since this is QuickTime at work, the same trick should work for movies or any other files that QuickTime controls.
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Easily mount disk images with an AppleScript Desktop
Here's a trick I discovered a few weeks ago. It basically wraps a shell command into AppleScript to ease disk image mounting. Here's the translation of what I published on my French website...

Under Mac OS X, disk image processing is provided by a private framework: DiskImages.framework (in /System -> Library -> PrivateFrameworks -> DiskImages.framework). Thanks to this framework, you can burn a CD directly from the Finder. In the Terminal, hdiutil is used to communicate with it. You can, for example, mount a disk image typing:
hdiutil mount disk_image_name.dmg
What's the point? Just try it. Instead of having Disk Copy launch, mount the image, and then quit, hdiutil provides you with a seamless integration of disk image mounting without any app-launching.

Now, sure, it isn't great to go to the Terminal each time you need to mount a disk image. So let's make an AppleScript wrapper for this command:
tell application "Finder" to set filelist to selection as list

repeat with aFile in filelist
if ((aFile as string) ends with ".dmg") then
do shell script ("hdiutil mount \"" &
POSIX path of (aFile as string) & "\"")
end if
end repeat
Just save the script as a compiled script, and put it in ~/Library/Scripts if you use Apple's ScriptMenu (and want to use it from the menubar), or in ~/Library/Big Cat Scripts/Files if you use Big Cat (and want it to appear in the Finder's contextual menu), or wherever you wish if you use Key Xing (and want to launch it from the keyboard). You'll just have to select any number of disk images in the Finder and launch the script. You'll be done very fast.

(For those who prefer to use SNAX, there is currently no way to use this script. SNAX doesn't load Big Cat's contextual menu, and version 1.2.8 is unable to provide a list of selected items anyways. Steve Gehrman, SNAX's author, is aware of the problem and will try to fix it in the next version.)
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Play audio CD images from the Finder Desktop
Today I selected a disc image of an audio CD (created with Toast). Much to my surprise, the Finder displayed the QuickTime play bar that is shown when audio files are selected. You can play the entire CD without burning or mounting it!

Here's a screenshot of an audio disk image being played in the Finder.
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Rename the trash can in the Finder Desktop
This is further to the hint which details how to rename the Trash in the Dock. This new hint as such 'localises' the Finder and renames the Trash to whatever you want. It may be most useful to pedantic British users, like myself, who have been lamenting the loss of the Wastesbasket since OS 9.

Read the rest of the article for the how-to...
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Listen to Internet radio in the Finder Desktop
I haven't seen this one posted yet, but its a nice feature of X, and worth mentioning it again.

When you have cable connection and click a "Listen" link at shoutcast.com, a .pls file is downloaded and played in iTunes. For every new station you select a new .pls file is downloaded.

Here comes the cool thing..

Open a Finder window in column view mode and find a .pls file (not the one that is playing in iTunes). Press the play button in the Finder window and the .pls file will start to play!

You can open other finder windows to with other .pls playing, however, the Finder window in the foreground will be heard. The other(s) continue playing in the background and can be heard when the window is clicked on. The iTunes stream keeps playing all the time.

There is limit in active streams you can have open, but I haven't found it yet. I've got 3 stations simultaneously running in their windows, and iTunes is also playing.

That does it for me...

[Editor's note: This is, of course, one of the features of the column-view Finder mode, but it is a unique application of that Finder feature!]
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Use F12 as a substitute for the eject key Desktop
I've just discovered an interesting little tidbit. It turns out that Apple didn't eliminate the F12-eject key functionality on non-Apple keyboards; they just made it more intelligent. So, instead of quickly pressing F12, press and hold it for a second. Your tray should pop out and in on your command.

[Editor's note: I thought we had run this hint before, but I couldn't find it in a search of the archives. There's a hint about the F12 eject key, but it was written before the nicer delayed functionality was introduced. The comments written there regarding ejecting all mounted drives, however, may still apply.]
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Child-proof your dock Desktop
It's easy to lock the dock so that it can't be changed. Go to ~/Library/Preferences. Select com.apple.dock.plist and select Show Info (command I) and check Locked. Now, even though you can still change the dock (position, items, size, etc.), if you log-out then log-in your dock will be restored!
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An AppleScript to rotate Finder windows Desktop
I've been looking for a way to select Finder windows via the keyboard for some time - ever since I realized that command-` (aka command-~) doesn't rotate Finder windows like it does in most Cocoa apps (OmniWeb). I finally found the right ApppleScript magic today:
tell application "Finder" to select last Finder window
After testing this, I set up Youpi Key to send that AppleScript when I press command-` in the Finder. I don't need a keyboard shortcut for "Go to..." anyway.
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Send screenshots to clipboard Desktop
So I was over at the CocoaDev mailing list archive and and picked up this little tidbit.

Press the control key with the standard screen grab keys (cmd-shft-3 or cmd-shft-4), and the grab goes to the clipboard rather that the desktop. Quite handy if you do a lot of grabs. You also get a different sound -- more of a thwap! rather than a KaChink!
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Temporary keyboard navigation of menus Desktop
Like myself, you may already be aware of the options in the Keyboard system preference to enable "full keyboard access". However, I stumbled across the fact that even if full keyboard access is disabled, when a menu is displayed via click and release of the mouse (not click and hold), you can then use the arrow keys to navigate the menus. Use up and down arrows as you'd expect and left and right both to move between menus and to navigate submenus.
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