SnapshotChangedEvent Class
In This Topic
Occurs when a new feed comes in from a device location source such as a GPS/GNSS device.
Object Model
Syntax
Public NotInheritable Class SnapshotChangedEvent Inherits ArcGIS.Core.Events.CompositePresentationEvent(Of SnapshotChangedEventArgs)
public sealed class SnapshotChangedEvent : ArcGIS.Core.Events.CompositePresentationEvent<SnapshotChangedEventArgs>
Example
Subscribe to Location Snapshot event
{
SnapshotChangedEvent.Subscribe(OnSnapshotChanged);
/// Handles changes to a snapshot by processing the provided snapshot data.
void OnSnapshotChanged(SnapshotChangedEventArgs args)
{
if (args == null)
return;
var snapshot = args.Snapshot as NMEASnapshot;
if (snapshot == null)
return;
//Note: Run within a QueuedTask
var pt = snapshot.GetPositionAsMapPoint();
if (pt?.IsEmpty ?? true)
return;
// access properties
var alt = snapshot.Altitude;
var dt = snapshot.DateTime;
var vdop = snapshot.VDOP;
var hdop = snapshot.HDOP;
// etc
//TODO: use the snapshot
}
}
Inheritance Hierarchy
System.Object
ArcGIS.Core.Events.EventBase
ArcGIS.Core.Events.CompositePresentationEvent<TPayload>
ArcGIS.Desktop.Core.DeviceLocation.Events.SnapshotChangedEvent
Requirements
Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)
ArcGIS Pro version: 3.0 or higher.
See Also