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850天前#include <stdio.h> |
#include <conio.h> |
#include <bios.h> |
int main ( void ) |
{ |
#define STATUS 2 /* printer status command */ |
#define PORTNUM 0 /* port number for LPT1 */ |
int status, abyte=0; |
printf ( "Please turn off your printer. Press any key to continue\n" ); |
getch(); |
status = biosprint ( STATUS, abyte, PORTNUM ); |
if ( status & 0x01 ) |
printf ( "Device time out.\n" ); |
if ( status & 0x08 ) |
printf ( "I/O error.\n" ); |
if ( status & 0x10 ) |
printf ( "Selected.\n" ); |
if ( status & 0x20 ) |
printf ( "Out of paper.\n" ); |
if ( status & 0x40 ) |
printf ( "Acknowledge.\n" ); |
if ( status & 0x80 ) |
printf ( "Not busy.\n" ); |
return 0; |
} |
