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UIView's frame, bounds, center, origin, when to use what?
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240
Marco's answer above is correct, but just to expand on the question of "under what context"...
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Passing arguments with spaces between (bash) script
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148
$*, unquoted, expands to two words. You need to quote it so that someApp receives a single argu...
How do I show a MySQL warning that just happened?
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zombatzombat
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git produces Gtk-WARNING: cannot open display
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4 Answers
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How to locate the vimrc file used by vim editor?
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Skippy le Grand Gourou
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answered Jan 23 '12 at 19:49
manojldsmanojlds
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What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)
...on.
– Jonathan Leffler
Aug 1 '13 at 4:03
7
Technically, $(echo foo) creates a command substitutio...
Difference between Django's annotate and aggregate methods?
...> Book.objects.aggregate(average_price=Avg('price'))
{'average_price': 34.35}
Returns a dictionary containing the average price of all books in the queryset.
Annotation
>>> q = Book.objects.annotate(num_authors=Count('authors'))
>>> q[0].num_authors
2
>>> q[1].num_a...
How do I undo “Scope to this” in Visual Studio 2012?
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ThiefMasterThiefMaster
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How can I extract a good quality JPEG image from a video file with ffmpeg?
... the default is -qmin 2).
To output a series of images:
ffmpeg -i input.mp4 -qscale:v 2 output_%03d.jpg
See the image muxer documentation for more options involving image outputs.
To output a single image at ~60 seconds duration:
ffmpeg -ss 60 -i input.mp4 -qscale:v 4 -frames:v 1 output.jpg
This ...
HTML Body says cz-shortcut-listen=“true” with Chrome's Developer Tools?
...g, and while using the Developer Tools on Google Chrome version 22.0.1229.94 m, I saw the <body> tag has the attribute cz-shortcut-listen="true" (which of course is not on my code). What does it mean and why is it showing up? (I tried looking it up in google, but found nothing relevant)
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