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C++ Language > Learn C++ Language > how to use dos.h
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how to use dos.h

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SUDHIR SHARMA - Computer Trainer based On Hyderabad

Its simple aman just go through this link with examples explains are there .. Still have any doubt u can ask here.. http://www.programmingsimplified.com/c/dos.h
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1. First you need to include the header file 2. You can now use the functions built into dos.h - delay - getdate - setdate - gettime - sound - nosound
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Software Professional Trainer with 26+ years of Experience in Software Design and Development

#include "stdio.h" #include "dos.h" int main() { printf("Wait 10 seconds\n"); /* Sleep function prototype is available in dos.h */ sleep(10); return 0; }
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First include dos.h header file then use their function. Before use function, you must have knowledge of dos functions and their charactistics
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Java Professional with 11+ Yrs of experience

The header file dos.h was created to facilitate calls to System API and the OS, so that programmers could use system calls such as delay (int) or sleep (int) in their programs. But it was written at a time when DOS was the primary and Microsoft's only operating system! Unlike in the late 90s when...
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The header file dos.h was created to facilitate calls to System API and the OS, so that programmers could use system calls such as delay (int) or sleep (int) in their programs. But it was written at a time when DOS was the primary and Microsoft's only operating system! Unlike in the late 90s when it served as the shell on top of which early versions of Windows ran. But now, OSs like Windows Vista, 7, 8, 10 etc. are pure 32/64 bit systems and CMD is just an interaction utility that's provided to the user so that they can work on Command Line! Now you've got to realize that when Dev C++ was being developed, DOS was perishing and system calls could only be made on the OS on which the compiler is running, right? And that's when the header file windows.h was written to aid windows users and unix.h for unix users and so on. So, now there are two things you can do: You can copy the header file dos.h from an older compiler like TCC or your Turbo C++'s Lib to the Cygwin library that, I think Dev C++ uses. Although it may not work (compatibility/Security issues that modern compilers have); or Check the online documentation for windows.h and find the equivalent functions, and use them in your program, good luck read less
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International Corporate Trainer For dotnet Core ,Angular 2 ,C ,C++ and LPT Marathi for RBI Banking

dos.h is used for date, time and system memory related functions
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2nd year B.E

use to call dos function such as interrupt , date & time and hardware related function.
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Computer Programmer

You must work with torbo c++
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You need to understand that the header file dos.h was created to facilitate calls to System API and the OS, so that programmers could use system calls such as delay (int) or sleep (int) in their programs. But it was written at a time when DOS was the primary and Microsoft's only operating system!...
read more
You need to understand that the header file dos.h was created to facilitate calls to System API and the OS, so that programmers could use system calls such as delay (int) or sleep (int) in their programs. But it was written at a time when DOS was the primary and Microsoft's only operating system! Unlike in the late 90s when it served as the shell on top of which early versions of Windows ran. But now, OSs like Windows Vista, 7, 8, 10 etc. are pure 32/64 bit systems and CMD is just an interaction utility that's provided to the user so that they can work on Command Line! Now you've got to realize that when Dev C++ was being developed, DOS was perishing and system calls could only be made on the OS on which the compiler is running, right? And that's when the header file windows.h was written to aid windows users and unix.h for unix users and so on. So, now there are two things you can do: You can copy the header file dos.h from an older compiler like TCC or your Turbo C++'s Lib to the Cygwin library that, I think Dev C++ uses. Although it may not work (compatibility/Security issues that modern compilers have); or Check the online documentation for windows.h and find the equivalent functions, and use them in your program, good luck read less
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use #include preprocessor at top of your program to include this header file into ur program. Thus all functions of this header file will act as part of your program and then to use any of its function you can directly invoke that function instead of writing dos. command repeatedly.
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