dos.h is a header file of
C Language. This library has functions that are used for handling
interrupts, producing sound, date and time functions, etc. It is Borland specific and works in compilers like
Turbo C Compiler.
Below are the functions supported by this library:
- delay(): The delay() function in C is used to stop the execution of the program for some period of time.
Syntax:
delay(unsigned int)
Parameters: It accepts a time in milliseconds to stop the execution of the program to that period of time.
Below is the program to illustrate delay():
- sleep(): The sleep() function in C is used to delay the execution of the program for some period of time.
Syntax:
sleep(unsigned seconds)
Parameters: It accepts a time in seconds to delay the execution of the program to that period of time.
Below is the program to illustrate sleep():
- getdate(): The getdate() function in C is used to get the current Date of the system.
Syntax:
getdate(struct date d)
Parameters: It accepts a structure date which is defined in dos.h library itself. To print the date it uses function da_day(), da_mon() and da_year().
Below is the program to illustrate getdate():
- gettime(): The gettime() function in C is used to get the Time shown by the System.
Syntax:
gettime(struct time t)
Parameters: It accepts a structure time which is defined in dos.h library itself. To print the date it uses function ti_hour(), ti_min() and ti_sec().
Below is the program to illustrate gettime():
- sound(): The sound() function in C is used to play different sound on different frequency on our system.
Syntax:
sound(int frequency)
Parameters: It accepts a frequency and play the sound of that frequency in our system.
Below is the program to illustrate sound():
- nosound(): The nosound() function in C is used to stop the sound played by souns() function.
Syntax:
nosound()
Parameters: It doesn't accepts any parameters.
Below is the program to illustrate nosound():
