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864天前#include <graphics.h> |
#include <stdlib.h> |
#include <stdio.h> |
#include <conio.h> |
int main(void) |
{ |
/* request auto detection */ |
int gdriver = DETECT, gmode, errorcode; |
int left, top, right, bottom; |
/* 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 */ |
} |
left = getmaxx() / 2 - 50; |
top = getmaxy() / 2 - 50; |
right = getmaxx() / 2 + 50; |
bottom = getmaxy() / 2 + 50; |
/* draw a rectangle */ |
rectangle(left,top,right,bottom); |
/* clean up */ |
getch(); |
closegraph(); |
return 0; |
} |
