I am reviewing your post again since I didn't realized that you are the author at first. The decision on the contribution stays as is, because contribution on C/C++/C# are not approved since there is no proper repository for this languages, and repositories belong to IDEs are not approved for the contributions on those languages. And I should also say that this contribution is not as informative as we expect tutorials to be. Contributions in the category are supposed to contain detailed instructions and explanations for topics covered in the post. Take this as a suggestion for your future contributions.