conio.h

matt_w_lambert · 07-11-2003, 07:27 PM

i just started to learn c programing from an old book and it says to use the conio.h header file but when i compil it says there is no such thing.

kev82 · 07-11-2003, 07:30 PM

conio is i believe the dos implementation of curses.

shellcode · 07-12-2003, 12:46 AM

you cant....

conio is only used by the Borland compilers i believe....

you should use ncurses

IMHO:
who needs console grafix anyway...either make a console app or go all the way and make it a GUI app

kev82 · 07-12-2003, 04:13 AM

Quote:

IMHO:
who needs console grafix anyway...either make a console app or go all the way and make it a GUI app

ever compiled a kernel on a machine that doesnt have X?

Hko · 07-12-2003, 05:04 AM

Or, ever used 'mc'?

Mohsen · 07-12-2003, 05:40 AM

http://www.linuxquestions.org/questi...threadid=45919

nautilus_1987 · 07-12-2003, 05:59 AM

Everything is simple people, conio header uses simple Windows callings that are defined in windows.h. That is the part of code I used in one of my programs, I have taken the code from conio.c.

Code:

//Windows Callings
//==============================================================================//
//Clean Screen Function (only for Windows)
void clrscr() {
  COORD coord;
  DWORD written;
  CONSOLE_SCREEN_BUFFER_INFO info;

  coord.X = 0;
  coord.Y = 0;
  GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &info);
  FillConsoleOutputCharacter (GetStdHandle(STD_OUTPUT_HANDLE), ' ',
    info.dwSize.X * info.dwSize.Y, coord, &written);
  gotoxy (1, 1);
}

//GOTO x or Y
void gotoxy(int x, int y) {
  COORD c;
  c.X = x - 1;
  c.Y = y - 1;
  SetConsoleCursorPosition (GetStdHandle(STD_OUTPUT_HANDLE), c);
}
void textbackground(int _color) {
  if (_color == BLINK)
     _color = WHITE;
  __BACKGROUND = _color;
  textattr (__FOREGROUND | (_color + 29));
}

void textcolor(int _color) {
  if (_color == BLINK)
     _color = WHITE;
  __FOREGROUND = _color;
  textattr(_color | __BACKGROUND);
}

void textattr(int _attr) {
  SetConsoleTextAttribute (GetStdHandle(STD_OUTPUT_HANDLE), _attr);
//  printf ("%d\n", text_info.screenheight);
}
//===============================================================================//

so no conio.h in Linux. But ncurses are used for that

vapor · 07-13-2003, 11:50 PM

nake ur own header

DIYLinux · 07-18-2003, 09:46 AM

If I remember correct, conio is indeed a Borland invention. It was a very thin layer over the M$ DOS library (its not an OS). It was a buit lighter than a full stdio implementation. Later, other C compiler vendors in the M$ world started supporting it (I remember Watcom C/C++).

Conio typical use was to do user interaction. You could see if a key was pressed without waiting using _kbhit. In the UNIX world, your best bet is to use select(2) on the file descriptor 0 (the one stdin uses). If you do not like BSDisms, try SYSV style poll. Both are available on Linux and glibc systems.

Other functions can b e reasonably approximated with the stdio functions. _getch is a bit harder, because it does not echo. You will have to check that you are talking to a tty (see isatty(3)), and turn echo off. See the low level I/O and serial line stuff in your glibc documentation. Or, check the source code login.c in util-linux.

Anyway, here (http://www.digitalmars.com/rtl/conio.html) is a short reference of conio.h. Copy the header to your /usr/include and enjoy reimplementing some 20 year old obsolete library.

shellcode · 07-19-2003, 12:04 AM

Quote:

Originally posted by kev82
ever compiled a kernel on a machine that doesnt have X?

i suppose there are some exceptions to what i said but for the most part its annoying.

also: notice the IMHO.