How to check if GPS request for position information is sucessful

[myuuuu]

I developed an application tt can geotag photos. However, I want my camera application not to capture an image if GPS information such as longitude and latitude cannot be retrieved sucessfully. I have read through the APIs but I still not sure how I can do so. Which is the variable or method that actually tells you that a GPS request is not sucessful(which I think is caused by when GPS sattelites cannot be detected)? Please help. Thank you.

[ltomuta]

Location info is retrieved asynchronously and in active object's RunL method you will have yo check whether iStatus.Int() is KErrNone or something else (note that not everything else means a real error).

Aside from that you can also check the returned Latitude and Longitude values and if they are not NaN the all is OK.

[Bernd42]

In your RunL menthod where you are notified updates of the coordinates you will also get a error code KPositionQualityLoss in the iStatus member variable when the GPS fix is lost.

Othewise checking the long/lat values for KNaN should be sufficient in most cases, like ltomuta said.

Bernd