Check location is valid before llMapDestination

Hi,

I've written a script that allows the user to teleport to a destination that is provided in a series of ways.

What I can't seem to figure out is how to check if that location is valid or not before opening llMapDestination. If I do that and the location is invalid, the map still pops up but does nothing.

It's really important my script is able to detect if the location is valid or not before doing that, so it can warn the user so they can fix it.

Is there any way to do this? I've tried looking for functions to check if a region name exists, but I can't find any. This is ridiculous.

Am I stuck without ever knowing if the location is valid or not?

Thank you!

Oh, thank you! I'm sure I saw this function but I don't know why I dismissed it. Strange that... I must have thought when it said "simulator" it meant the server, not the region.

This is a great help. I'll try it now.

Thank you