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函数名: arc
功 能: 画一弧线
用 法: void far arc(int x, int y, int stangle, int endangle, int radius);
程序例:
#include
#include
#include
#include int main(void)
{
int gdriver = DETECT, gmode, errorcode;
int midx, midy;
int stangle = 45, endangle = 135;
int radius = 100;
initgraph(&gdriver, &gmode, "");
errorcode = graphresult();
if (errorcode != grOk)
{
printf("Graphics error: %s\n", grapherrormsg(errorcode));
printf("Press any key to halt:");
getch(); exit(1);
} midx = getmaxx() / 2;
midy = getmaxy() / 2;
setcolor(getmaxcolor());
arc(midx, midy, stangle, endangle, radius);
getch();
closegraph();
return 0;
}