Can we use gotoxy function in C plus plus?

Answer 1

Ideally you would not manipulate std::cout using such a low-level function. Console output is intentionally generic so that output can be easily redirected to any output device that accepts a character stream. As such, this code will not work correctly if the user were to redirect output to a disk file or a printer, or use the output as input to another program. If you wish to format screen output in a non-generic manner, do not use the console, use a screen-specific context device instead.

#include<iostream>

#include<string>

#ifdef WIN32

#include<windows.h>

#endif WIN32

void gotoxy(int x, int y)

{

#ifdef WIN32

static HANDLE h = NULL;

if(!h)

h = GetStdHandle (STD_OUTPUT_HANDLE);

COORD c = { x, y };

SetConsoleCursorPosition (h,c);

#elif linux

printf("%c[%d;%df",0x1B,y,x);

#else

static_assert (false, "unsupported platform in gotoxy()");

#endif WIN32

}

void draw_box(unsigned x, unsigned y, unsigned width, unsigned height)

{

gotoxy (x, y);

std::cout << std::string (width, '*');

for (unsigned z=2; z<height; ++z)

{

gotoxy (x, ++y);

std::cout << "*";

gotoxy (x+width-1, y);

std::cout << "*";

}

gotoxy (x,++y);

std::cout << std::string (width, '*');

}

int main()

{

draw_box(10,10,5,4); // draw 5x4 box at {10,10}

gotoxy (0,25);

}

Answer 2

gotoxy() is not part of the standard library and any implementation you encounter is unlikely to be cross-platform compatible. If cross-platform isn't a concern then use OS-specific calls such as SetConsoleCursorPosition() in Windows and putp() in UNIX (don't forget to install ncurses). You can also "roll-your-own" version of gotoxy() as a function that caters for all the platforms that you intend to target, but you must distribute the function along with any code that uses it if you intend to share your code.

Answer 3

gotoxy() function is defines in conio.h library. However this header file is not defined in GCC standards and hence an attempt to include the file will produce error message if the compiler is based on GCC standards. However, you can use it in Turbo C++.

Answer 4

#include

...

gotoxy (1,1);
cprintf ("Top-left corner");

Answer 5

Puts the cursor into the given position. (For more information use the built-in help.)

Answer 6

Use the built-in help. (Press F1)