Rawi,
NI-DAQ provides a function prototype for Borland Delphi, so NI-DAQ function calls should work fine in that environment. Your program seems to be correct. However, you don't state why it's not working, and I've noticed that you don't seem to be checking the iStatus return value for an NI-DAQ error. You might want to check to see if an error is being returned. That could point you in the right direction. If you continue to have problems, I would recommend contacting National Instruments support for troubleshooting assistance.
Also, the counter/timer developer exchange is targeted towards 660X and TIO-10 counter/timer products. The PCI-6023E is a multifunction I/O board, and in the future, you may want to consider posting your inquiries to the multifuncti
on I/O exchange for assistance.
Regards,
Erin