how to craete c# barcode library?

I searched MSDN and found the following articles that might help:
https://code.msdn.microsoft.com/windowsdesktop/Using-Barcode-Reader-In-C-e5172a25
https://social.msdn.microsoft.com/Forums/vstudio/en-US/9df63d27-c5aa-4bc4-9319-18b486c6261e/how-to-generate-barcode-using-c?forum=csharpgeneral

Also, I found the following sample code that uses leadtools toolkit:
http://support.leadtools.com/SupportPortal/CS/forums/44930/ShowPost.aspx