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How to get pixel data from a UIImage (Cocoa Touch) or CGImage (Core Graphics)?
... NSUInteger bytesPerRow = bytesPerPixel * width;
NSUInteger bitsPerComponent = 8;
CGContextRef context = CGBitmapContextCreate(rawData, width, height,
bitsPerComponent, bytesPerRow, colorSpace,
kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big);...
What is the difference between Serialization and Marshaling?
...m a primitive form such as a byte stream. In this sense, serialization is one means to perform marshaling, usually implementing pass-by-value semantics.
It is also possible for an object to be marshaled by reference, in which case the data "on the wire" is simply location information for the origi...
Clang vs GCC for my Linux Development project
...h shows a net advantage of gcc in average. Also interesting may be the DragonEgg bench, DragonEgg is a plugin that allows using the gcc front-end (and possibly optimizer) and then the LLVM backend to generate the code.
– Matthieu M.
Dec 8 '11 at 13:04
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Force Java timezone as GMT/UTC
... need to force any time related operations to GMT/UTC, regardless the timezone set on the machine. Any convenient way to so in code?
...
Hidden Features of JavaScript? [closed]
...Crockford's excellent book
JavaScript: The Good Parts.
But I'll take just one for you, always use === and !== instead of == and !=
alert('' == '0'); //false
alert(0 == ''); // true
alert(0 =='0'); // true
== is not transitive. If you use === it would give false for
all of these statements as ex...
JPA: what is the proper pattern for iterating over large result sets?
...e and has fewer than 100 elements checking size() == 100 instead will skip one additional query that returns empty list
– cdalxndr
May 12 at 18:52
add a comment
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Use of var keyword in C#
...to ignore it because in my professional and personal opinion, it's pure baloney. (Sorry; I've got no link to the guideline in question.)
Actually, there are some (superficially) good explanations on why you shouldn't use var but I still believe they are largely wrong. Take the example of “searcha...
Calculate text width with JavaScript
...the time. Strip all relevant styles from the container before applying the ones you care about before measuring.
– Jason Bunting
Sep 23 '08 at 0:33
46
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Do I really need to encode '&' as '&'?
... better just to escape all instances of this symbol than worry about which ones should be and which ones don't need to be.
Keep this point in mind; if you're not escaping & to &, it's bad enough for data that you create (where the code could very well be invalid), you might also not be ...
Pass complex parameters to [Theory]
Xunit has a nice feature : you can create one test with a Theory attribute and put data in InlineData attributes, and xUnit will generate many tests, and test them all.
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