MouseButtonEventHandler MouseButtonEventHandler MouseButtonEventHandler MouseButtonEventHandler Delegate

Definición

Representa el método que va a controlar los eventos enrutados relacionados con el botón del mouse, por ejemplo MouseLeftButtonDown.Represents the method that will handle mouse button related routed events, for example MouseLeftButtonDown.

public delegate void MouseButtonEventHandler(System::Object ^ sender, MouseButtonEventArgs ^ e);
public delegate void MouseButtonEventHandler(object sender, MouseButtonEventArgs e);
type MouseButtonEventHandler = delegate of obj * MouseButtonEventArgs -> unit
Public Delegate Sub MouseButtonEventHandler(sender As Object, e As MouseButtonEventArgs)

Parámetros

sender
Object Object Object Object

Objeto en que está asociado el controlador de eventos.The object where the event handler is attached.

Herencia
MouseButtonEventHandlerMouseButtonEventHandlerMouseButtonEventHandlerMouseButtonEventHandler

Ejemplos

En el ejemplo siguiente se crea un MouseDown controlador de eventos que cambia el color de fondo del origen del evento.The following example creates a MouseDown event handler that changes the background color of the source of the event. El color de fondo se determina qué botón está presionado.The background color is determined by which button is pressed.

private void MouseButtonDownHandler(object sender, MouseButtonEventArgs e)
{
    Control src = e.Source as Control;

    if (src != null)
    {
        switch (e.ChangedButton)
        {
            case MouseButton.Left:
                src.Background = Brushes.Green;
                break;
            case MouseButton.Middle:
                src.Background = Brushes.Red;
                break;
            case MouseButton.Right:
                src.Background = Brushes.Yellow;
                break;
            case MouseButton.XButton1:
                src.Background = Brushes.Brown;
                break;
            case MouseButton.XButton2:
                src.Background = Brushes.Purple;
                break;
            default:
                break;
        }
    }
}
Private Sub MouseButtonDownHandler(ByVal sender As Object, ByVal e As MouseButtonEventArgs)
    Dim src As Control = TryCast(e.Source, Control)

    If src IsNot Nothing Then
        Select Case e.ChangedButton
            Case MouseButton.Left
                src.Background = Brushes.Green
            Case MouseButton.Middle
                src.Background = Brushes.Red
            Case MouseButton.Right
                src.Background = Brushes.Yellow
            Case MouseButton.XButton1
                src.Background = Brushes.Brown
            Case MouseButton.XButton2
                src.Background = Brushes.Purple
            Case Else
        End Select
    End If
End Sub

Comentarios

Este delegado se utiliza con los siguientes eventos adjuntos.This delegate is used with the following attached events.

Este delegado se utiliza con los siguientes eventos enrutados.This delegate is used with the following routed events. Estos eventos enrutados reenvían los eventos adjuntos enumerados anteriormente para que sean más accesibles para el modelo general de elemento en WPFWPF.These routed events forward the previously listed attached events to make them more accessible to the general element model in WPFWPF.

Los eventos adjuntos y los eventos enrutados de elementos base comparten sus datos de evento y la propagación y tunelización de versiones de los eventos enrutados también compartan datos del evento.The attached events and the base element routed events share their event data, and the bubbling and tunneling versions of the routed events also share event data. Esto puede afectar a las características controladas del evento cuando recorre la ruta del evento.This can affect the handled characteristics of the event as it travels the event route. Para obtener más información, consulte Input Overview.For details, see Input Overview.

Extension Methods

GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate)

Obtiene un objeto que representa el método representado por el delegado especificado.Gets an object that represents the method represented by the specified delegate.

Se aplica a

Consulte también: