Andre,

If you turn on the altaz scope control, you will have two new menu
options under Guide. One 'slews' Guide to the coordinates contained in

SLEW.DAT

which has the format

R <Ra degrees>
D <Dec degrees>
p <Alt degrees>
q <Az degrees>
...
t <time()> <JD>
L <lat> <long>

My program, Scope.exe, reads this file using a menu option in my
program.

Similarly, my program will output coordinates to a file

SLEW_OUT.DAT

with the format

R <az degrees> <alt degrees>

which Guide can then read using one of the two menu options mentioned
above.

This scheme is in use by at least a handful of Guide/Scope users.

Here's how to turn on the control in Guide:

Configure Guide by going to Settings, then Scope Control. Select an
unused comm port, and pick 'altaz'. You will see a new drop down menu
option appear, "Scope Pad". Select it. Be careful not to move the
mouse as the cursor's position is used to send coordinates. To send
coordinates from guide to scope.exe, select 'slew scope' on the scope
pad menu. To receive coordinates into Guide from scope.exe, select
'slew guide'.

Mel Bartels