setfillstyle sets the current fill pattern and fill color. To set a user-
defined fill pattern, do not give a pattern of 12 (USER_FILL) to
setfillstyle; instead, call setfillpattern.
If invalid input is passed to setfillstyle, graphresult returns -1
(grError), and the current fill pattern and fill color remain unchanged.
Note: The EMPTY_FILL style is like a solid fill using the current
background color (which is set by setbkcolor).
/* setfillstyle example */
#include <graphics.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <conio.h>
/* the names of the fill styles supported */
char *fname[] = { "EMPTY_FILL", "SOLID_FILL", "LINE_FILL",
"LTSLASH_FILL", "SLASH_FILL", "BKSLASH_FILL", "LTBKSLASH_FILL",
"HATCH_FILL", "XHATCH_FILL", "INTERLEAVE_FILL", "WIDE_DOT_FILL",
"CLOSE_DOT_FILL", "USER_FILL" };
int main(void)
{
/* request autodetection */
int gdriver = DETECT, gmode, errorcode;
int style, midx, midy;
char stylestr[40];
/* 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 */
}
midx = getmaxx() / 2;
midy = getmaxy() / 2;
for (style = EMPTY_FILL; style < USER_FILL; style++) {
/* select the fill style */
setfillstyle(style, getmaxcolor());
/* convert style into a string */
strcpy(stylestr, fname[style]);
/* fill a bar */
bar3d(0, 0, midx-10, midy, 0, 0);
/* output a message */
outtextxy(midx, midy, stylestr);
/* wait for a key */
getch();
cleardevice();
}
/* clean up */
getch();
closegraph();
return 0;
}