Hi There

I have a question about GPS

How can I interrogate any device so that I can quickly determine if there is a GPS unit so that if not, I won't even attempt to connect and get a position in my code.

I have looked into using the ServiceStatus and I can use this with a timeout that will fail if a connection just time-outs (Which it will if no GPS is present!) but its not very elegant.

What i am looking for is something that does the following:

1.  Has device got GPS device

- if YES do the usual connecting and use the eventhandlers when position info starts coming etc etc

- If NO then just return a failed due to there not being a GPS device so that the software can carry on and not bother about getting GPS positions.

Is there a way to do this?

Regards

DaveK17

If you want to check if a GPS is setup with the GPS Intermediate Driver you can query the registry. I will find out the specific key and post back with it

Peter

First read the "CurrentDriver" value in

[HKEY_LOCAL_MACHINE\System\CurrentControlSet\GPS Intermediate Driver\Drivers]

Then open the subkey with the name of the currently selected driver e.g.

[HKEY_LOCAL_MACHINE\System\CurrentControlSet\GPS Intermediate Driver\Drivers\Control Panel Configured Device]

Here you can check that a valid COM port has been selected.

Peter