Using Conio.h In Dev C++
Jan 23, 2007 hii guys the dev-c compiler does not support conio.h but i want to use it any way i want to use the functions clrscr and gotoxy. So how do i i. Conio.h is a C (programming language) C header file used in old MS-DOS compilers to create text user interfaces. It is not described in The C Programming Language (book) The C Programming Language book, and it is not part of the C standard library, ISO C nor is it required by POSIX. This header declares several useful library functions for performing 'console input and output' from a program.
conio.h is a C (programming language) C header file used in old MS-DOS compilers to create text user interfaces. It is not described in The C Programming Language (book) The C Programming Language book, and it is not part of the C standard library, ISO C nor is it required by POSIX.
This header declares several useful library functions for performing 'console input and output' from a program. Most C compilers that target DOS, Windows 3.x, Phar Lap (company) Phar Lap, DOSX, OS/2, or Win32[1] have this header and supply the associated library functions in the default C library. Most C compilers that target UNIX and Linux do not have this header and do not supply the library functions. Some embedded systems are using a conio-compatible library [2].
The library functions declared by conio.h vary somewhat from compiler to compiler. As originally implemented in Lattice C, the various functions mapped directly to the first few DOS int 21h functions. But the library supplied with Borland's Turbo C did not use the DOS API but instead accessed video RAM directly for output and used BIOS interrupt calls; they also have additional functions inspired on the successful Turbo Pascal library.
Compilers that targeted non-DOS operating systems, such as Linux[citation needed], Win32 and OS/2, provided different implementations of these functions.[citation needed] The version done by DJ Delorie for the DJGPP GO32 extender is particularly extensive[3]. Another example is SyncTERM#Libraries SyncTERM's ciolib.
lpc
| int kbhit(void) | Determines if a keyboard key was pressed. |
| int getch(void) | Reads a character directly from the console without buffer, and without echo. |
| int getche(void) | Reads a character directly from the console without buffer, but with echo. |
| int ungetch(int c) | Puts the character c back into the keyboard buffer. |
| char *cgets(char *buffer) | Reads a string directly from the console. |
| int cscanf(char *format, arg0,.. argn) | Reads formatted values directly from the console. |
| int putch(int c) | Writes a character directly to the console. |
| int cputs(const char *string) | Writes a string directly to the console. |
| int cprintf(const char *format, arg0,.. argn) | Formats values and writes them directly to the console. |
Compilers provided later than 1989 have prepended an _ to the names, to comply with the requisites of the ANSI C Standard.
External links[edit]
- IO FAQ - explanation and suggestions for non-standard console IO
References[edit]
- ↑'Console and Port I/O in MSDN'. http://msdn.microsoft.com/en-us/library/7x2hy4cx(VS.71).aspx.
- ↑'MicroVGA conio Text User Interface Library'. http://www.microvga.com/conio-lib.
- ↑'DJGPP C Library Reference - conio'. http://www.delorie.com/djgpp/doc/libc/libc_4.html.
conio.h is a C header file used mostly by MS-DOS compilers to provide console input/output.[1] It is not part of the C standard library or ISO C, nor it is defined by POSIX.
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This header declares several useful library functions for performing 'console input and output' from a program. Most C compilers that target DOS, Windows 3.x, Phar Lap, DOSX, OS/2, or Win32[2] have this header and supply the associated library functions in the default C library. Most C compilers that target UNIX and Linux do not have this header and do not supply the library functions. Some embedded systems or cc65 use a conio-compatible library.[3]
The library functions declared by conio.h vary somewhat from compiler to compiler. As originally implemented in Lattice C, the various functions mapped directly to the first few DOSINT 21H functions. The library supplied with Borland's Turbo C did not use the DOS API but instead accessed video RAM directly for output and used BIOS interrupt calls. This library also has additional functions inspired from the successful Turbo Pascal one.
Compilers that target non-DOS operating systems, such as Linux or OS/2, provide similar solutions; the unix-related curses library is very common here. Another example is SyncTERM's ciolib. The version of conio.h done by DJ Delorie for the GO32 extender is particularly extensive.[4]
Member functions[edit]
C++ Conio Library
kbhit | Determines if a keyboard key was pressed |
cgets | Reads a string directly from the console |
cscanf | Reads formatted values directly from the console |
putch | Writes a character directly to the console |
cputs | Writes a string directly to the console |
cprintf | Formats values and writes them directly to the console |
clrscr | Clears the screen |
getch | Get char entry from the console |
How To Use Math.h In Dev C++
References[edit]
- ^Schildt, Herbert (1995). C: The Complete Reference (3rd ed.). Berkeley, Calif.: Osborne McGraw-Hill. p. 288. ISBN0-07-882101-0.
For DOS-compatible compilers, the direct console I/O functions generally use the CONIO.H header file.
- ^'Console and Port I/O in MSDN'.
- ^'MicroVGA conio Text User Interface Library'.
- ^'DJGPP C Library Reference – conio'.
How To Use Conio.h In Dev C++
External links[edit]
- IO FAQ - explanation and suggestions for non-standard console IO