JavaCard OS

I would like to create a program that can detect smart card reader, java card's power up or down, send and receive APDU command.
You may say that this program looks like pyApdutool... Yes, but I need to finish it in C# language. Is there a similar open source program?

Hey guy,

In fact, it doesn't have any relationship with what language you need to implement.

You can refer to pyresman, which is open source project. You just need to know how to use the smart card library.