tc界面图形程序3

我要升级，帮你搞定算了。
这个是网上的，按Enter键可以看到填充图案变化。
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
int main(void)
{ /* request auto detection */
int gdriver = DETECT, gmode, errorcode;
int midx, midy, i;
/* 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; /* loop through the fill patterns */
for (i=SOLID_FILL; i<USER_FILL; i++)
{ /* set the fill style */
setfillstyle(i, getmaxcolor()); /* draw the bar */
bar(midx-50, midy-50, midx+50, mid