Recently I was updating a library that contains two keyed collection classes. These collections aren't the usual run-of-the-mill collections as they need to be able to support duplicate keys. Normally I'd inherit from KeyedCollection but as with most collection implementations, duplicate keys are not permitted in this class. This article describes how I used T4 templates to dynamically generate my custom collection classes without requiring a public base class.

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Normally when I load textures in OpenGL, I have a PNG file which I load into a System.Drawing.Bitmap and from there I pull out the bytes and pass to glTexImage2D. It works, but seems a bit silly having to create the bitmap in the first place. For this reason, I was toying with the idea of creating a very simple image format so I could just read the data directly when I came across a simple format named farbfeld. This article describes a basic encoder/decoder for C# along with my own thoughts.

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I've recently been working on a number of small test programs for the different sections which make up a game I'm planning on writing. One of these test systems involved a series of polyominoes which I needed to rotate. Internally, the data for these shapes are stored as a simple boolean array, which I access as though it were two dimensions. This article and corresponding source code download describe how to rotate 2D rectangular arrays (or 1D arrays that masquerade as 2D) in 90° intervals clockwise or anti-clockwise.

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The new exception management library I've been working on was originally targeted for .NET 4.6, changing to .NET 4.5.2 when I found that Azure websites don't support 4.6 yet. Regardless of 4.5 or 4.6, this meant trouble when I tried to integrate it with WebCopy - this product uses a mix of 3.5 and 4.0 targeted assemblies, meaning it couldn't actually reference the new library due the higher framework version.

Rather than creating several different project files with the same source but different configuration settings, I decided that I would modify the library to target multiple framework versions from the same source project, and this article describes how I did this.

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Last week I attended the NEBytes technology user group for the first time. One of the presentations was for Twilio, an easy to use platform for creating SMS and VoIP applications. This short article demonstrates (with a simple caveat) just how easy it is to use this platform for sending SMS messages - a perfect way of adding two factor authentication to your services, or sending alert notifications, or any number of use cases.

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