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How to take a screenshot programmatically on iOS
... Core Graphics contexts
Apple Docs - UIGraphicsImageRenderer
So you can now do something like this:
let renderer = UIGraphicsImageRenderer(size: someView.bounds.size)
let image = renderer.image(actions: { context in
someView.drawHierarchy(in: someView.bounds, afterScreenUpdates: true)
})
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C++ multiline string literal
...#include ing a file? I can't think of one, but boy, that would be nice. I know it'll be in C++0x.
10 Answers
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How to search for “R” materials? [closed]
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this wouldn't work these days - S-Plus is history now and I imagine most R users have never touched it. And most current R packages were developed without reference to it.
– Peter Ellis
Apr 25 '13 at 7:45
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Quickly create large file on a Windows system
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It's not a sparse file (as far as I know) and the file is empty.
– Joey
Jan 4 '12 at 10:39
1
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How to change row color in datagridview?
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I was just investigating this issue (so I know this question was published almost 3 years ago, but maybe it will help someone... ) but it seems that a better option is to place the code inside the RowPrePaint event so that you don't have to traverse every row, only t...
puts vs logger in rails rake tasks
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Rake tasks are run by a user, on a command-line. Anything they need to know right away ("processed 5 rows") should be output on the terminal with puts.
Anything that needs to be kept for posterity ("sent warning email to jsmith@example.com") should be sent to the Rails.logger.
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How to determine the Boost version on a system?
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If you only need to know for your own information, just look in /usr/include/boost/version.hpp (Ubuntu 13.10) and read the information directly
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How do I rename the extension for a bunch of files?
...is does not work for filenames with spaces in them without proper quoting (now added above). When working purely on your own files that you know do not have spaces in the filenames this will work but whenever you write something that may be reused at a later time, do not skip proper quoting.
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How do I get the directory from a file's full path?
...ing a relative name. I hadn't spotted that the path will be absolute. I've now got both versions :)
– Jon Skeet
Mar 23 '09 at 17:57
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Altering a column to be nullable
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Although I don't know what RDBMS you are using, you probably need to give the whole column specification, not just say that you now want it to be nullable. For example, if it's currently INT NOT NULL, you should issue ALTER TABLE Merchant_Pend...