I found an example in a book about making graphics in C (a very short example). It was using
union REGS regs;
I tried to compile it, and I got the first error on that line (all the other error were because of that...)

Anyway, I looked up REGS in the BCB-help, and found an example...

Code:
/* int86 example */

#include <stdio.h>
#include <conio.h>
#include <dos.h>

#define VIDEO 0x10

void movetoxy(int x, int y)
{
	union REGS regs;

   regs.h.ah = 2;  /* set cursor position */
	regs.h.dh = y;
   regs.h.dl = x;
   regs.h.bh = 0;  /* video page 0 */
	int86(VIDEO, &regs, &regs);
}

int main(void)
{
	clrscr();
	movetoxy(35, 10);
	printf("Hello\n");
	return 0;
}
Compiled this, and got en error. Same thing.. the union-line. I sat down to look through some include-files if I could find REGS somewhere, but no result.

So.. does anyone have a suggestion for what I might do? All examples in the book uses this, so I can't move on making cool stuff