by Martin Welker
To get qualified access to paper based information, sometimes more than plain OCR is needed. This article shows why, and offers a solution to increase OCR quality by semi-automatic table extraction.
by Jecho Jekov
Provides an easy way to use C calling convention callback functions in C# and VB
by Mr. xieguigang 谢桂纲
How to build my own 3D graphics engine from ZERO step by step
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An article on "How to authenticate windows user using form authentication in ASP.NET?"