You have to printf ANSI.SYS compliant escape sequences

Basically the sequnces are escape (ascii 27) [ (ascii 91)
followed by sequences of letters and numbers. When you send a number it has to be a single character, and the ascii value

For example if you want to send a 1 then
Code:
char s,esc,squacket;  // squacket is a square bracket
s = '1';
esc = 27;
squacket = 91;
printf("%c%c%c",esc,squacket,s);
The two sequcnes I know offf the top of my head
clear screen = esc[2J
move cursor to a given position (ex: row=2, col =4 ) esc[2;4H

Go here for a description:

http://enterprise.aacc.cc.md.us/~rhs/ansi.html