ManipulationProcessor2D.Started 事件

定义

命名空间:

System.Windows.Input.Manipulations

程序集:

System.Windows.Input.Manipulations.dll

在开始新操作后发生。

public:
 event EventHandler<System::Windows::Input::Manipulations::Manipulation2DStartedEventArgs ^> ^ Started;

public event EventHandler<System.Windows.Input.Manipulations.Manipulation2DStartedEventArgs> Started;

member this.Started : EventHandler<System.Windows.Input.Manipulations.Manipulation2DStartedEventArgs> 

Public Custom Event Started As EventHandler(Of Manipulation2DStartedEventArgs) 

事件类型

EventHandler<Manipulation2DStartedEventArgs>

示例

在以下示例中，事件的事件处理程序 Started 将检查是否正在运行惯性处理，如果正在运行，则会停止它。

#region OnManipulationStarted
private void OnManipulationStarted(object sender, Manipulation2DStartedEventArgs e)
{
    if (inertiaProcessor.IsRunning)
    {
        inertiaProcessor.Complete(Timestamp);
    }
}
#endregion

#region Timestamp
private long Timestamp
{
    get
    {
        // Get timestamp in 100-nanosecond units.
        double nanosecondsPerTick = 1000000000.0 / System.Diagnostics.Stopwatch.Frequency;
        return (long)(System.Diagnostics.Stopwatch.GetTimestamp() / nanosecondsPerTick / 100.0);
    }
}
#endregion