| 词条 | floodfill |
| 释义 | § 解释 函数名: floodfill 功 能: 填充一个有界区域 用 法: void far floodfill(int x, int y, int border); § 程序例 #include <graphics.h> #include <stdlib.h> #include <stdio.h> #include <conio.h> int main(void) { /* request auto detection */ int gdriver = DETECT, gmode, errorcode; int maxx, maxy; /* initialize graphics, local variables */ initgraph(&gdriver, &gmode, ""); /* read result of initialization */ errorcode = graphresult(); if (errorcode != grOk) /* an error occurred */ { printf("Graphics error: %s\", grapherrormsg(errorcode)); printf("Press any key to halt:"); getch(); exit(1); /* terminate with an error code */ } maxx = getmaxx(); maxy = getmaxy(); /* select drawing color */ setcolor(getmaxcolor()); /* select fill color */ setfillstyle(SOLID_FILL, getmaxcolor()); /* draw a border around the screen */ rectangle(0, 0, maxx, maxy); /* draw some circles */ circle(maxx / 3, maxy /2, 50); circle(maxx / 2, 20, 100); circle(maxx-20, maxy-50, 75); circle(20, maxy-20, 25); /* wait for a key */ getch(); /* fill in bounded region */ floodfill(2, 2, getmaxcolor()); /* clean up */ getch(); closegraph(); return 0; } |
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