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How to generate and validate a software license key?

...eveloping a product (developed in C#) that'll be available for downloading and installing for free but in a very limited version. To get access to all the features the user has to pay a license fee and receive a key. That key will then be entered into the application to "unlock" the full version. ...
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NSDefaultRunLoopMode vs NSRunLoopCommonModes

...me sort or long-running operation without interaction with external events and without timers, you do not need a run loop, but if your thread needs to respond to incoming events, it should be attached to a run loop in order to wake up the thread when new events arrive. This is the case of NSURLConne...
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CMake: How to build external projects and include their targets

...re. As you noted, the highly flexible ExternalProject module runs its commands at build time, so you can't make direct use of Project A's import file since it's only created once Project A has been installed. If you want to include Project A's import file, you'll have to install Project A manually...
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How to simulate a click by using x,y coordinates in JavaScript?

...ing it was clicked. All modern browsers support document.elementFromPoint and HTMLElement.prototype.click(), since at least IE 6, Firefox 5, any version of Chrome and probably any version of Safari you're likely to care about. It will even follow links and submit forms: document.elementFromPoint(...
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Is it possible to hide extension resources in the Chrome web inspector network tab?

...ed for it here https://code.google.com/p/chromium/issues/detail?id=239401 and now it is possible. share | improve this answer | follow | ...
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Using querySelector with IDs that are numbers

From what I understand the HTML5 spec lets you use IDs that are numbers like this. 5 Answers ...
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How does Dijkstra's Algorithm and A-Star compare?

...was looking at what the guys in the Mario AI Competition have been doing and some of them have built some pretty neat Mario bots utilizing the A* (A-Star) Pathing Algorithm. ...
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What does ON [PRIMARY] mean?

I'm creating an SQL setup script and I'm using someone else's script as an example. Here's an example of the script: 4 Ans...
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How to Get the Title of a HTML Page Displayed in UIWebView?

... - range1.location - 7)]; NSLog(@"substring is %@",subString); I Used +7 and -7 in NSMakeRange to eliminate the length of <title> i.e 7 share | improve this answer | ...
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Export from sqlite to csv using shell script

... Great, thanks, now it's working! (and it's needed ">>" instead of ">", but I'm a newbei in linux :D) – Rorro Apr 25 '11 at 11:15 ...