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What is the difference between varchar and nvarchar?
...ses only ASCII, I would still recommend using Unicode in the database. The OS and database collation algorithms will work better with Unicode. Unicode avoids conversion problems when interfacing with other systems. And you will be preparing for the future. And you can always validate that your data ...
Getting realtime output using subprocess
...this is a known bug: http://bugs.python.org/issue3907 (The issue is now "Closed" as of Aug 29, 2018)
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How do I enter RGB values into Interface Builder?
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Click on the color slider icon, and then choose "RGB Sliders" from the drop-down list.
You can also use the magnifying-glass as a color picker to pick up an exact color from anywhere on the screen; also see @ken's excellent comment below clarifying how colorspaces wor...
Inspect element that only appear when other element is mouse overed/entered
...ecords a portion of the screen directly in a super-optimized GIF. Windows, OS X and Linux.
– fregante
Jul 17 '14 at 7:26
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Expand/collapse section in UITableView in iOS
...t of its section, just like the regular Apple section headers. that's not possible if you simply add a cell at the beginning of the section
– user102008
Apr 20 '11 at 22:25
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How do I match any character across multiple lines in a regular expression?
...engine to engine. The main difference is whether the pattern is used by a POSIX or non-POSIX regex library.
Special note about lua-patterns: they are not considered regular expressions, but . matches any char there, same as POSIX based engines.
Another note on matlab and octave: the . matches any ...
NSRange to Range
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The NSString version (as opposed to Swift String) of replacingCharacters(in: NSRange, with: NSString) accepts an NSRange, so one simple solution is to convert String to NSString first. The delegate and replacement method names are slightly different in ...
Elevating process privilege programmatically?
...appen in the middle of a lengthy process), you'll need to run your entire host process with elevated permissions by Create and Embed an Application Manifest (UAC) to require the 'highestAvailable' execution level: this will cause the UAC prompt to appear as soon as your app is started, and cause all...
Visual Studio 64 bit?
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For numerous reasons, No.
Why is explained in this MSDN post.
First, from a performance perspective the pointers get larger, so data
structures get larger, and the processor cache stays the same size.
That basically results in a raw speed hit (your mileage may vary). So
you start...
Ruby: How to post a file via HTTP as multipart/form-data?
I want to do an HTTP POST that looks like an HMTL form posted from a browser. Specifically, post some text fields and a file field.
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