fillpoly

Syntax

#include <graphics.h>
void fillpoly(int numpoints, int *polypoints);

Description

fillpoly draws the outline of a polygon with numpoints points in the current line style and color (just as drawpoly does), then fills the polygon using the current fill pattern and fill color.

polypoints points to a sequence of (numpoints * 2) integers. Each pair of integers gives the x- and y-coordinates of a point on the polygon.

Return Value

None.

See also

drawpoly

floodfill

graphresult

setfillstyle

Example

/* fillpoly example */ 

#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>

int main(void)
{
   /* request autodetection */
   int gdriver = DETECT, gmode, errorcode;
   int i, maxx, maxy;

   /* our polygon array */
   int poly[8];

   /* initialize graphics and local variables */
   initgraph(&gdriver, &gmode, "");

   /* 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 */
   }

   maxx = getmaxx();
   maxy = getmaxy();

   poly[0] = 20;             /* first vertex */
   poly[1] = maxy / 2;
   poly[2] = maxx - 20;      /* second vertex */
   poly[3] = 20;
   poly[4] = maxx - 50;      /* third vertex */
   poly[5] = maxy - 20;
   poly[6] = maxx / 2;       /* fourth, fillpoly automatically */
   poly[7] = maxy / 2;       /* closes the polygon */


   /* loop through the fill patterns */
   for (i=EMPTY_FILL; i<USER_FILL; i++) {
      /* set fill pattern */
      setfillstyle(i, getmaxcolor());

      /* draw a filled polygon */
      fillpoly(4, poly);
      getch();
   }

   /* clean up */
   closegraph();
   return 0;
}