Input a byte (_inp), a word (_inpw), or a double word (_inpd) from a port.
int _inp( unsigned short port );
unsigned short _inpw( unsigned short port );
unsigned long _inpd( unsigned short port );
| Routine | Required Header | Compatibility |
| _inp | <conio.h> | Win 95 |
| _inpw | <conio.h> | Win 95 |
| _inpd | <conio.h> | Win 95 |
For additional compatibility information, see Compatibility in the Introduction.
Libraries
| LIBC.LIB | Single thread static library, retail version |
| LIBCMT.LIB | Multithread static library, retail version |
| MSVCRT.LIB | Import library for MSVCRT.DLL, retail version |
Return Value
The functions return the byte, word, or double word read from port. There is no error return.
Parameter
port
Port number
Remarks
The _inp, _inpw, and _inpd functions read a byte, a word, and a double word, respectively, from the specified input port. The input value can be any unsigned short integer in the range 0 – 65,535.
See Also _outp