In a programme, I create a readwrite cursor (eg- curx). The cursor remains active after the programme is over.
I relaunch the programme again which has the same code to create the same cursor. I get the error "Alias name already in Use"

I'm sure my questions may have simple answers:

One , what is the code to find out whether curx is open?
Two, if open, what is the code to close only curx?
Three, is there any flaw in my program, because normal cursors are supposed to overwrite existing cursors?

Thanks

Regards,

Steve.