GeoCoordinateWatcher.StatusChanged イベント

定義

名前空間:

System.Device.Location

アセンブリ:

System.Device.dll

GeoCoordinateWatcher オブジェクトの状態が変化したことを示します。

public:
 event EventHandler<System::Device::Location::GeoPositionStatusChangedEventArgs ^> ^ StatusChanged;

public event EventHandler<System.Device.Location.GeoPositionStatusChangedEventArgs> StatusChanged;

member this.StatusChanged : EventHandler<System.Device.Location.GeoPositionStatusChangedEventArgs> 

Public Event StatusChanged As EventHandler(Of GeoPositionStatusChangedEventArgs) 

イベントの種類

EventHandler<GeoPositionStatusChangedEventArgs>

実装

StatusChanged

例

次の例では、イベントを処理 StatusChanged する方法を示します。

using System;
using System.Device.Location;
namespace ShowStatusUpdates
{
    class Program
    {
        static void Main(string[] args)
        {
            ShowStatusUpdates();
        }

        static void ShowStatusUpdates()
        {
            GeoCoordinateWatcher watcher = new GeoCoordinateWatcher();
            watcher.Start();

            watcher.StatusChanged += new EventHandler<GeoPositionStatusChangedEventArgs>(watcher_StatusChanged);

            Console.WriteLine("Enter any key to quit.");
            Console.ReadLine();
        }

        static void watcher_StatusChanged(object sender, GeoPositionStatusChangedEventArgs e)
        {
            switch (e.Status)
            {
                case GeoPositionStatus.Initializing:
                    Console.WriteLine("Working on location fix");
                    break;

                case GeoPositionStatus.Ready:
                    Console.WriteLine("Have location");
                    break;

                case GeoPositionStatus.NoData:
                    Console.WriteLine("No data");
                    break;

                case GeoPositionStatus.Disabled:
                    Console.WriteLine("Disabled");
                    break;
            }
        }
    }
}

Imports System.Device.Location

Module GetLocationEvent

    Sub ShowStatusUpdates()
        Dim Watcher As GeoCoordinateWatcher
        Watcher = New GeoCoordinateWatcher()
        watcher.Start()
        AddHandler Watcher.StatusChanged, AddressOf watcher_StatusChanged

        Console.WriteLine("Enter any key to quit.")
        Console.ReadLine()
    End Sub

    Sub watcher_StatusChanged(ByVal sender As Object, ByVal e As GeoPositionStatusChangedEventArgs)
        Select Case e.Status
            Case GeoPositionStatus.Initializing
                Console.WriteLine("Working on location fix")
            Case GeoPositionStatus.Ready
                Console.WriteLine("Have location")
            Case GeoPositionStatus.NoData
                Console.WriteLine("No data")
            Case GeoPositionStatus.Disabled
                Console.WriteLine("Disabled")
        End Select
    End Sub

    Public Sub Main()
        ShowStatusUpdates()
    End Sub
End Module

注釈

イベントは StatusChanged 、オブジェクトが作成されたのと同じスレッド GeoCoordinateWatcher で発生します。