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893天前#include <graphics.h> |
#include <stdlib.h> |
#include <stdio.h> |
#include <conio.h> |
#define BUFSIZE 1000 /* internal graphics buffer size */ |
int main(void) |
{ |
/* request auto detection */ |
int gdriver = DETECT, gmode, errorcode; |
int x, y, oldsize; |
char msg[80]; |
/* set the size of the internal graphics buffer */ |
/* before making a call to initgraph. */ |
oldsize = setgraphbufsize(BUFSIZE); |
/* 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 */ |
} |
x = getmaxx() / 2; |
y = getmaxy() / 2; |
/* output some messages */ |
sprintf(msg, "Graphics buffer size: %d", BUFSIZE); |
settextjustify(CENTER_TEXT, CENTER_TEXT); |
outtextxy(x, y, msg); |
sprintf(msg, "Old graphics buffer size: %d", oldsize); |
outtextxy(x, y+textheight("W"), msg); |
/* clean up */ |
getch(); |
closegraph(); |
return 0; |
} |
