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Best way to change the background color for an NSView

I'm looking for the best way to change the backgroundColor of an NSView . I'd also like to be able to set the appropriate alpha mask for the NSView . Something like: ...
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Making git auto-commit

I'd like to use git to record all the changes to a file. 18 Answers 18 ...
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Issue with adding common code as git submodule: “already exists in the index”

I'm new to git and would appreciate help with adding submodules. I've received two projects sharing some common code. The shared code was just copied into the two projects. I created a separate git repo for the common code and removed it from the projects with the plan to add it as a git submodule...
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ImportError: No module named site on Windows

I am trying to install Python for the first time. I downloaded the following installer from the Python website: Python 2.7.1 Windows Installer (Windows binary -- does not include source) . I then ran the installer, selected 'All Users' and all was fine. I installed Python into the default location:...
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Difference between CR LF, LF and CR line break types?

I'd like to know the difference (with examples if possible) between CR LF (Windows), LF (Unix) and CR (Macintosh) line break types. ...
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What is a “surrogate pair” in Java?

... The term "surrogate pair" refers to a means of encoding Unicode characters with high code-points in the UTF-16 encoding scheme. In the Unicode character encoding, characters are mapped to values between 0x0 and 0x10FFFF. Internally, Java uses the UTF-16 en...
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Converting RGB to grayscale/intensity

When converting from RGB to grayscale, it is said that specific weights to channels R, G, and B ought to be applied. These weights are: 0.2989, 0.5870, 0.1140. ...
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How can bcrypt have built-in salts?

Coda Hale's article "How To Safely Store a Password" claims that: 4 Answers 4 ...
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Why are arrays covariant but generics are invariant?

...ut useful polymorphic programs. For example, consider writing a function to shuffle an array, or a function that tests two arrays for equality using the Object.equals method on the elements. The implementation does not depend on the exact type of element stored in the array, so it should be possib...
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SHA512 vs. Blowfish and Bcrypt [closed]

... It should suffice to say whether bcrypt or SHA-512 (in the context of an appropriate algorithm like PBKDF2) is good enough. And the answer is yes, either algorithm is secure enough that a breach will occur through an implementation flaw, not c...