Steven Wilkinson said in a message to All:
 SW> I'm sorry for the cross posting but I didn't know where to put this
 SW> call for help.
Well, this certainly isn't the place, Steven. :)
 SW> Can anyone out there help me I need to find out what signals are 
 SW> present on the various lines between a serial mouse and the 
 SW> computer (port) when:
 SW>                 1.  The left hand button is pressed.
 SW>                 2. the right hand button is pressed.
I'd expect any decent Computer Technician's Handbook would have a whole 
chapter on the mouse interface(s) for the PC.
 SW> The reason for the need for this information is because I'm 
 SW> building an interface which will need to behave as if either of the
 SW> mouse buttons have been pressed.
Have you checked your software development system to see if there is a mouse 
management library? Generally, directly interacting with the hardware is not 
good programming practice, regardless of the operating system.
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