I should to develop one system using c#. This system is for merit (Student activities mark) calculation, i am add thumbprint for secure attendance from the cheater for get the merit. I am almost done for develop this system but i am stuck on connection thumbprint to my system. For the information i am use Digital Persona U. are. U 4500 for thumbprint device. i am not have more time because i should to finish this project before 3hb August 2020. I hope anyone can help me.