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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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Run a batch file with Windows task scheduler
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I'm aware the original post is quite old. But this post was among the top link in google search when I was trying the answer for this problem. So I think I'd like to share the findings. Just in case, anybody including myself is forgotting this.
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How do I write a bash script to restart a process if it dies?
...ps! Don't ever do this.
ps is very unportable. While you find it on almost every UNIX system; its arguments vary greatly if you want non-standard output. And standard output is ONLY for human consumption, not for scripted parsing!
Parsing ps leads to a LOT of false positives. Take the ps aux |...
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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Haskell offline documentation?
What are the possibilities, if any, for getting offline docs for Haskell core libraries (and maybe more)?
9 Answers
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Favourite performance tuning tricks [closed]
...s give to someone asking me about optimisation.
We mainly use Sybase, but most of the advice will apply across the board.
SQL Server, for example, comes with a host of performance monitoring / tuning bits, but if you don't have anything like that (and maybe even if you do) then I would consider t...
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...
How do I prevent an Android device from going to sleep programmatically?
...ibes different approaches to keeping a device awake, and when you might choose to use one. If "prevent device from going to sleep" only refers to the screen (and not keeping the CPU active) then a wake lock is probably more than you need.
You also need to be sure you have the WAKE_LOCK permission s...
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 ...