It might be older technology, but P/Invoke is still useful today. Learn how to leverage it to your advantage.
Latest .NET Nuts & Bolts Articles - Page 6
Dust off your serial port and find new uses for a nearly-forgotten data link.
When is it appropriate to use a static construct? Learn about it here.
Create routines to make working with file lists much friendlier, and how to upload and download files from the account.
Learn to create URLs for webforms that are page-independent.
Did you ever stop to thoroughly explore some of the more esoteric types, Lists and Stacks, that are available in the .NET collections namespace?
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Become more proficient on the usage of statements to control the flow of execution through a C++/CLI application.
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.
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.
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