Create a simple Windows Forms application that will use your computer's web cam to turn your PC into a motion detection system.
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Learn about AlphaBlending, and how it can assist you in creating nice effects on your pictures or drawings.
Discover (Rediscover?) an image-manipulating tool that's been around for ages, but is especially suited to working within the .NET framework.
The concepts of boxing and unboxing data might be second nature for many, but for newbies it's worth covering. And, the "old hands" may learn something new, as well.
Because it's often easier to address pixels/cells directly than to use Windows Forms or something similar, it's very often simpler to manipulate raw pixel data directly.
"Meta Data" is simply information about the data in an image. Learn to manipulate that data from code.
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Quirky and yet persistent, C++ is a language that keeps programmers coming back to it. Pick up some new ways to wrangle it into your workflow.
Even today, there's still a need for Events. Learn about them, and how to use them in your coding.
Learn how to use the simple, yet powerful, WndProc command and its associated methods to override various window and mouse functions.
Translation costs time and money, and can affect the quality of the product being made. Make sure all your team members speak the same language.