Function getch in C program prompts a user to press a character. It doesn't show up on the screen. Its declaration is in 'conio.h' header file. The function is not a part of standard C library.
- Include Conio
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Prev Next All C inbuilt functions which are declared in conio.h header file are given below. The source code for conio.h header file is also given below for your reference. List of inbuilt C functions in conio.h file: Functions Description clrscr This function is used to clear the output screen. Getch It reads character from keyboard getche It reads character from keyboard and echoes to. Borland-style CONIO implementation for MinGW/Dev-C. Devpak for Dev-C. Documentation in PDF. SourceForge project page, you can download files and access. Dec 03, 2013 This feature is not available right now. Please try again later.
- The platform-specific function getch from conio.h has two special features: No echoing of characters. Unbuffered reading of characters. The echoing is done by the terminal outside of the C/C environment. It can only be controlled by manipulating the terminal. Also, it is nearly impossible to get unbuffered I/O with the iostream.h header.
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C programming code for getch
#include <stdio.h>#include <conio.h>
int main()
{
printf('Waiting for a character to be pressed from the keyboard to exit.n');
Antares auto tune 8 crack mac. getch();
return0;
}
When you run this program, it exits only when you press a character. Try pressing num lock, shift key, etc. (program will not exit if you press these keys) as these are not characters.
Include Conio
Try running the program by removing getch. In this case, it will exit without waiting for a character hit from the keyboard.
How to use getch in C++
#include <iostream.h>#include <conio.h>
int main()
{
cout <<'Enter a character';
getch();
}
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Using getch in Dev C++ compiler
Function getch works in Dev C++ compiler but it doesn't support all functions of 'conio.h' as Turbo C compiler does.
Function getchar in C
#include <stdio.h>int main()
{
int c;
c =getchar();
putchar(c);
return0;
}
A common use of getch is you can view the output (if any) of a program without having to open the output window if you are using Turbo C compiler or if you are not running your program from the command prompt.
All C inbuilt functions which are declared in conio.h header file are given below. The source code for conio.h header file is also given below for your reference.
List of inbuilt C functions in conio.h file:
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Description | |
clrscr() | This function is used to clear the output screen. |
getch() | It reads character from keyboard |
getche() | It reads character from keyboard and echoes to o/p screen |
textcolor() | This function is used to change the text color |
textbackground() | This function is used to change text background |
Source code for conio.h header file:
Please find the source code for conio.h header file below. This code is taken from DevC++ compiler files for your reference.
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2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 | * conio.h * This file has no copyright assigned and is placed in the Public Domain. * This file is a part of the mingw-runtime package. * No warranty is given; refer to the file DISCLAIMER within the package. * Low level console I/O functions. Pretty please try to use the ANSI * #define _CONIO_H_ /* All the headers include this file. */ extern'C'{ _CRTIMP int__cdecl _cprintf(constchar*,...); _CRTIMP int__cdecl _cscanf(char*,...); _CRTIMP int__cdecl _getch(void); _CRTIMP int__cdecl _kbhit(void); _CRTIMP int__cdecl _ungetch(int); #ifndef _NO_OLDNAMES _CRTIMP int__cdecl getch(void); _CRTIMP int__cdecl kbhit(void); _CRTIMP int__cdecl ungetch(int); #endif /* Not _NO_OLDNAMES */ #ifdef __cplusplus #endif #endif /* Not RC_INVOKED */ #endif /* Not _CONIO_H_ */ |