[c]代码库
#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\n",
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;
}