#include <windows.h>typedef void (WINAPI *PORTOUT) (short int Port, char Data);typedef void (WINAPI *PORTWORDOUT)(short int Port, short int Data);typedef void (WINAPI *PORTDWORDOUT)(short int Port, int Data);typedef char (WINAPI *PORTIN) (short int Port);typedef short int (WINAPI *PORTWORDIN)(short int Port);typedef int (WINAPI *PORTDWORDIN)(short int Port);typedef void (WINAPI *SETPORTBIT)(short int Port, char Bit);typedef void (WINAPI *CLRPORTBIT)(short int Port, char Bit);typedef void (WINAPI *NOTPORTBIT)(short int Port, char Bit);typedef short int (WINAPI *GETPORTBIT)(short int Port, char Bit);typedef short int (WINAPI *RIGHTPORTSHIFT)(short int Port, short int Val);typedef short int (WINAPI *LEFTPORTSHIFT)(short int Port, short int Val);typedef short int (WINAPI *ISDRIVERINSTALLED)();extern PORTOUT PortOut;extern PORTWORDOUT PortWordOut;extern PORTDWORDOUT PortDWordOut;extern PORTIN PortIn;extern PORTWORDIN PortWordIn;extern PORTDWORDIN PortDWordIn;extern SETPORTBIT SetPortBit;extern CLRPORTBIT ClrPortBit;extern NOTPORTBIT NotPortBit;extern GETPORTBIT GetPortBit;extern RIGHTPORTSHIFT RightPortShift;extern LEFTPORTSHIFT LeftPortShift;extern ISDRIVERINSTALLED IsDriverInstalled;extern int LoadIODLL();