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C++ Locate-like command

When I was programming in basic there was a locate command that let me put a character up on the screen in any location provided I supplied an x and y value.  How is this done in C++?
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Booth882
Asked:
Booth882
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1 Solution
 
nietodCommented:
C++ is platform/hardware independant.  The standard C and C++ libraries do not assume that you working on a console, that is a display, with rows and columns of letters.  There may be some libraries  available that will provide this sort of feature for a particular platform/hardware.

What compiler and what platform are you using?
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jpk041897Commented:
Only some examples for nietod's comment.

To achieve what you are looking for in UNIC console apps. you would use CURSES, in DOS Windows you woud use either the GDI OutText() function or a method for a specific window derived class, this method changes from VC++ to BC++, etc.
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nietodCommented:
In windows you would use TextOut() (not OutText() (which prints backwards--just kidding)).  But there are lots of other details in windows!  (These details do not change from VC to BC, howwever, unless you are useing MFC or OWL.)  However, I doubt this is a windows program.  If it is a DOS program or a windows console program, then TextOut() isn't available.
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q2guoCommented:
Try the function
void gotoxy(int x, int y)
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nietodCommented:
gotoxy() is not part of the standard C++ library.  You might have a library that defines it, but Booth might not.
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Booth882Author Commented:
I guess I should be more specific.  I am using Microsoft Visual C++ 4.0.  Windows at the moment is befuddling, so I am trying to stick with console applications until I figure out what I am doing.  If I were to use this void gotoxy(int x, int y) what should I include?  And what other things should I try?  Thank you all for your help, by the way.
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Booth882Author Commented:
I guess I should be more specific.  I am using Microsoft Visual C++ 4.0.  Windows at the moment is befuddling, so I am trying to stick with console applications until I figure out what I am doing.  If I were to use this void gotoxy(int x, int y) what should I include?  And what other things should I try?  Thank you all for your help, by the way.
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q2guoCommented:
Sorry Booth882, function gotoxy() is not avaiable in
Visual C++.  It 's only avaible in Borland C.  To use
it you need to include <conio.h>
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nietodCommented:
In a windows console application you can use the SetConsoleCursorPosition() API function.
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Booth882Author Commented:
how do I use SetConsoleCursorPosition and what do I include?  And what is API?
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jhanceCommented:
Here's an example of how to write a string to the screen:


#include <windows.h>
#include <stdio.h>
#include <string.h>
#include <wincon.h>

void main(void)
{
      COORD coord;
      TCHAR *hello = "Hello World!";
      DWORD charsWritten;

      // Allocate a console buffer
      HANDLE hBuffer = CreateConsoleScreenBuffer(
            GENERIC_READ | GENERIC_WRITE,
            0,
            NULL,
            CONSOLE_TEXTMODE_BUFFER,
            NULL
      );
      if(hBuffer == INVALID_HANDLE_VALUE){
            fprintf(stderr, "ERROR in CreateConsoleScreenBuffer\n");
            exit(1);
      }

      if(!SetConsoleActiveScreenBuffer(hBuffer)){
            fprintf(stderr, "ERROR in SetConsoleActiveScreenBuffer\n");
            exit(1);
      }

      coord.X = 30;
      coord.Y = 12;
      if(!SetConsoleCursorPosition(hBuffer, coord)){
            fprintf(stderr, "ERROR in SetConsoleCursorPosition\n");
            exit(1);
      }

      if(!WriteConsole(hBuffer, hello, strlen(hello), &charsWritten, NULL)){
            fprintf(stderr, "ERROR in WriteConsole\n");
            exit(1);
      }

}
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Booth882Author Commented:
You have my undying gratitude, jhance.

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