Nero object events dont fire

I am set event OnDriveStatusChanged.
I am load/eject CD, but event don’t fired.
OnWaitCD, OnWaitCDDone - dont fired.

In order for OnDriveStatusChanged to fire you need to call EnableStatusCallback on NeroDrive object first. Even then the disc change events might not fire as this depends on whether they are globally enabled in Windows itself. OnWaitCD and OnWaitCDDone fire only during burning. You should not expect them to fire during load/eject operation.

If AutoRun disabled : NeroDrive::DriveStatusChanged dont fired.

In help was writen:
“If you want to be sure to recognize all
media changes, you should use timer
events and query the drive status.”

How to query the drive status?