C Language Program To Draw Ellipse in Various Shapes

#include <graphics.h>

#include <stdlib.h>

#include <stdio.h>

#include <conio.h>

int main(void)

{

   /* request auto detection */

   int gdriver = DETECT, gmode, errorcode;

   int xasp, yasp, midx, midy;

   /* initialize graphics and local variables */

   initgraph(&gdriver, &gmode, "..//bgi");

   /* read result of initialization */

   errorcode = graphresult();

   if (errorcode != grOk)  /* an error occurred */

   {

      printf("Graphics error: %s\n", grapherrormsg(errorcode));

      printf("Press any key to halt:");

      getch();

      exit(1); /* terminate with an error code */

   }

   midx = getmaxx() / 2;

   midy = getmaxy() / 2;

   setcolor(getmaxcolor());

   /* get current aspect ratio settings */

   getaspectratio(&xasp, &yasp);

   /* draw normal circle */

   circle(midx, midy, 200);

   getch();

   /* clear the screen */

   cleardevice();

   /* adjust the aspect for a wide circle */

   setaspectratio(xasp/2, yasp);

   circle(midx, midy, 200);

   getch();

   /* adjust the aspect for a narrow circle */

   cleardevice();

   setaspectratio(xasp, yasp/2);

   circle(midx, midy, 200);

   /* clean up */

   getch();

   closegraph();

   return 0;

}

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