https://code-reference.com/ 2026-06-21T05:30:18+02:00 https://code-reference.com/ https://code-reference.com/ttps://code-reference.com/lib/tpl/dokuwiki/images/favicon.ico text/html 2024-02-16T01:06:04+02:00 https://code-reference.com/c/dos.h/delay?rev=1708041964&do=diff void delay(unsigned int); description of delay delay function is used to suspend execution of a program for a particular time the parameter are number of milliseconds ( 1 second = 1000 milliseconds) #include<stdio.h> #include<dos.h> int main( void ) { printf("This c program quits in 42 seconds.\n"); delay(42000); return 0; } text/html 2024-02-16T01:06:05+02:00 https://code-reference.com/c/dos.h/getdate?rev=1708041965&do=diff description of getdate Program to print the current system date, getdate c code below explain how to use this function to print computer date. #include<stdio.h> #include<dos.h> int main(void) { struct date d; getdate(&d); printf("Date is %d/%d/%d\n",d.da_day,d.da_mon,d.da_year); return 0; } text/html 2014-03-14T18:43:10+02:00 https://code-reference.com/c/dos.h/gettime?rev=1394818990&do=diff struct time gettime( struct time ); description of gettime gettime function is used to find current system time. returns structure varibale of type ( struct time ). #include<stdio.h> #include<dos.h> int main(void) { struct time t; gettime(&t); printf("time is %d:%d:%d\n",t.ti_hour,t.ti_min,t.ti_sec); return 0; } text/html 2024-02-16T01:06:04+02:00 https://code-reference.com/c/dos.h/nosound?rev=1708041964&do=diff void nosound( void ); description of nosound turn off the PC speaker. #include<stdio.h> #include<dos.h> int main(void) { sound(400); delay(1000); nosound(); return 0; } output of nosound c example silence :D text/html 2024-02-16T01:06:05+02:00 https://code-reference.com/c/dos.h/setdate?rev=1708041965&do=diff struct time setdate( struct time ); description of setdate change the system date #include<stdio.h> #include<conio.h> #include<dos.h> int main(void) { struct date d; printf("Please type in new date ( day, month and year ) as int (ddmmyyyy):"); scanf("%d%d%d",&d.da_day,&d.da_mon,&d.da_year); setdate(&d); printf("System date is now %d/%d/%d\n",d.da_day,d.da_mon,d.da_year); getch(); return 0; } text/html 2024-02-16T01:06:05+02:00 https://code-reference.com/c/dos.h/sleep?rev=1708041965&do=diff void sleep( int ); description of sleep delay programm for given number of seconds #include<stdio.h> #include<dos.h> int main( void ) { printf("Wait or better sleep for 42 seconds to continue.\n"); sleep(42); printf("Programm execution continued after 42 seconds"); return 0; } text/html 2024-02-16T01:06:05+02:00 https://code-reference.com/c/dos.h/sound?rev=1708041965&do=diff void sound( unsigned int ); description of sound Producessound of a specified frequency. mostly used for adding music to c program random values and delay needed to make some strange sounds. #include<stdio.h> #include<dos.h> int main(void) { int i; for ( i = 42 ; i <= 4200 ; i ++ ) { i = i + rand(100); sound(i); delay(50); } nosound(); return 0; }