From: trapforcannedmeatproduct AT hotmail DOT com (R. Charles Henry)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: using the mouse in a program.
Date: 25 Oct 2002 08:30:27 -0700
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kevinplaxton AT yahoo DOT co DOT uk (Kevin Plaxton) wrote in message news:<c97cb09 DOT 0210240548 DOT 1781c6df AT posting DOT google DOT com>...
> If I wanted to make the game "Breakout", how would I use the mouse to
> move the paddle? It goes left and right, but not up and down.

union REGS mouse; 

int across;                  /* horizontal position of paddle */

mouse.x.ax = 0x0B;           /* initialise to tell BIOS what info required   */
int86(0x33, &mouse, &mouse); /* ask how far the mouse moved since last look  */
mdy=mouse.x.cx;              /* the vertical mouse movement returned in cx   */
across+=mdy;                 /* add / remove movement from 'across' variable */

see:
http://www.brackeen.com/home/vga/mouse.html

HTH?