#include <graphics.h> |
#include <stdlib.h> |
#include <stdio.h> |
#include <conio.h> |
int main ( void ) |
{ |
/* request auto detection */ |
int gdriver = DETECT, gmode, errorcode; |
int midx, midy; |
/* 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 */ |
} |
midx = getmaxx() / 2; |
midy = getmaxy() / 2; |
setcolor ( getmaxcolor() ); |
/* for centering screen messages */ |
settextjustify ( CENTER_TEXT, CENTER_TEXT ); |
/* output a message to the screen */ |
outtextxy ( midx, midy, "press any key to clear the screen:" ); |
/* wait for a key */ |
getch(); |
/* clear the screen */ |
cleardevice(); |
/* output another message */ |
outtextxy ( midx, midy, "press any key to quit:" ); |
/* clean up */ |
getch(); |
closegraph(); |
return 0; |
} |