CODEWITHSUNDEEP
cdosbgiturbo-c
Vishu Singhvi
Vishu Singhvi

Reputation: 415

c program graphics error

I have implemented the boundary fill algorithm in C language with the following code:--

/* WAP to fill the polygon using boundary fill 4 connected algo */

#include "stdio.h"
#include "conio.h"
#include "graphics.h"
#include "dos.h"

void main()
{

    int gd = DETECT, gm;
    clrscr();

    detectgraph(&gd, &gm);
    initgraph(&gd, &gm , "C:\\TC\\BGI");

    rectangle(60,60,500,500);
    boundary_fill(65,65,4,15);
    getch();
    closegraph();
}

boundary_fill(int x, int y, int fclr, int bclr)
{

    if(getpixel(x,y)!= bclr && getpixel(x,y)!= fclr)
    {
        putpixel(x,y,fclr);
        boundary_fill(x+1,y,fclr,bclr);
        boundary_fill(x-1,y,fclr,bclr);
        boundary_fill(x,y+1,fclr,bclr);
        boundary_fill(x,y-1,fclr,bclr);

    }
}

when i compile it no error come. But When i run the program the window closes and i get the following error:-- C:\TC\BIN\TC.EXE The NTVDM CPU has encounterer an illegal instruction.. . . . . .

PLease help

Upvotes: 0

Views: 1123

Answers (1)

Aniket Inge
Aniket Inge

Reputation: 25695

stop using turboC. run your 16 bit programs(such as TurboC/C++) with DosBox instead. NTVDM error occurs because of 32bit COMMAND-PROMPT trying to run a 16 Bit Program.

Upvotes: 2

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