调用winscard.dll（winscard.h这是微软标准的库），进行SLE4432、4442的调用。-Call winscard.dll (winscard.h This is Microsoft' s standard library), to conduct SLE4432 and 4442 calls.

The WinSCard API makes direct exchange of data between readers and cards possible by using APDUs. The WinSCard API’s C functions are declared in the header file, winscard.h, and the return codes are declared in winerror.h.