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10.5: View 512x512 icons in any icon view window Desktop
The new icons in Leopard can be up to 512 pixels wide, but you are still limited to viewing them at small sizes in the Finder. By making a few small edits to some system files, you can make the View » View Options panel's icon size slider go up to 512 pixels, in order to show really big icons.

In your favorite text editor, choose Open... from the File menu. Type Command-Shift-G to enter a path to open, and paste in this path: Press Return to open the file.

Now that you have the file open, use Find to search for com.apple.finder.TIconViewIconSizeItem. This should take you to the part of the document that gives settings for the icon size slider. Above the found text, you'll see a section that looks like this:
<object class="IBCarbonSlider" id="440">
<int name="controlID">1011</int>
<int name="controlSize">1</int>
<object name="layoutInfo" class="IBCarbonHILayoutInfo">
</object>
<boolean name="isLive">TRUE</boolean>
<int name="numTickMarks">8</int>
<int name="initialValue">48</int>
<int name="minimumValue">16</int>
<int name="maximumValue">128</int>
The last line is the key. You can change the number next to maximumValue to 512 and save the file. You'll be asked for an administrator password, as this is a system-owned file.

Now, relaunch the Finder and take a really close-up view of your icons.

[robg adds: This worked as described for me ... though you'll need a 30" display to actually use a 512x512 icon display!]
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10.5: View 512x512 icons in any icon view window | 7 comments | Create New Account
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10.5: View 512x512 icons in any icon view window
Authored by: WadeHM on Apr 01, '08 11:27:32AM

This worked really great, although I had to move the file out of the folder to the desktop make the changes and put it back. Even though I have administrator password, it wouldn't let me save the modified file while still in the folder.

Nice to be able to see the Leopard icons as they were made to be.



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10.5: View 512x512 icons in any icon view window
Authored by: diamondsw on Apr 01, '08 11:48:10AM
It works, but with a couple of caveats:

  • Icon previews are locked at 128px, so if you were hoping to see gorgeous detail on your desktop pictures, you're out of luck. Thankfully Quicklook obviates the need for this in most cases.
  • Grid spacing is nowhere near large enough. Unfortunately, there doesn't appear to be a "max" key for that to edit. If anyone is interested, it's the next slider down in the xib.


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10.5: View 512x512 icons in any icon view window
Authored by: mal0rd on Apr 02, '08 06:07:48AM

I found if I moved the grid spacing slider all the way to the left then they displayed fine, even at 999x999 resolulution.



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10.5: View 512x512 icons in any icon view window
Authored by: touringsedan on Apr 01, '08 05:43:07PM

My scrolling performance is horrible once I pass 128. I feel it is unusable for me. Running 10.5.2, Octo Mac Pro 2.8, 8GB Ram.



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Works in 10.4.11 as well
Authored by: magnamous on Apr 01, '08 06:32:45PM

I know it's not very useful, but I tried this in 10.4 just to see what happens, and although the icons have the jaggies (as would be expected), the hint does work.



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10.5: View 512x512 icons in any icon view window
Authored by: geotay on Apr 01, '08 07:36:34PM

Nifty.

And while leaving it at 512 isn't practical for me I did fish around for a sweet spot larger than 128. 188 works well for my Pictures folder with the dimensions of my preferred Finder window sizes.

Thanks for this hint!



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10.5: View 512x512 icons in any icon view window
Authored by: sd on Apr 02, '08 04:10:19AM

of course you should change the path to suit the language you use...
"English.lproj" will be "French.lproj" if your primary language is French.



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