Evento WindowVisibilityEventsClass.WindowShowing

Articolo
05/16/2015

Questa API supporta l'infrastruttura .NET Framework e non deve essere utilizzata direttamente dal codice.

Viene chiamato quando si rende visibile una finestra degli strumenti.

Spazio dei nomi: EnvDTE80
Assembly: EnvDTE80 (in EnvDTE80.dll)

Sintassi

'Dichiarazione
Public Overridable Event WindowShowing As _dispWindowVisibilityEvents_WindowShowingEventHandler

public virtual event _dispWindowVisibilityEvents_WindowShowingEventHandler WindowShowing

public:
virtual   event _dispWindowVisibilityEvents_WindowShowingEventHandler^ WindowShowing {
    void add (_dispWindowVisibilityEvents_WindowShowingEventHandler^ value);
    void remove (_dispWindowVisibilityEvents_WindowShowingEventHandler^ value);
}

abstract WindowShowing : IEvent<_dispWindowVisibilityEvents_WindowShowingEventHandler,
    EventArgs>
override WindowShowing : IEvent<_dispWindowVisibilityEvents_WindowShowingEventHandler,
    EventArgs>

JScript non supporta gli eventi.

Implementa

_dispWindowVisibilityEvents_Event.WindowShowing

Esempi

In questo esempio viene utilizzato un componente aggiuntivo per la connessione di WindowVisibilityEvents. Sostituire il codice nel file Connect.vb o Connect.cs con il codice di esempio riportato di seguito. Eseguire questo componente aggiuntivo, quindi aprire e poi chiudere la Finestra di comando e la Finestra di output nell'IDE Visual Studio per osservare il funzionamento dei metodi di acquisizione degli eventi. Per ulteriori informazioni sulla modalità di esecuzione degli esempi di automazione, vedere Procedura: compilare ed eseguire gli esempi di codice del modello a oggetti di automazione.

Imports System
Imports Microsoft.VisualStudio.CommandBars
Imports Extensibility
Imports EnvDTE
Imports EnvDTE80

Public Class Connect
    Implements IDTExtensibility2
    Dim applicationObject As DTE2
    Dim addInInstance As AddIn
    Public WithEvents windowsVisEvents As EnvDTE80.WindowVisibilityEvents
    Public Sub New()
    End Sub
    Public Sub OnConnection(ByVal application As Object, _
 ByVal connectMode As ext_ConnectMode, ByVal addInInst As Object, _
 ByRef custom As Array) Implements IDTExtensibility2.OnConnection
    applicationObject = CType(application, DTE2)
    addInInstance = CType(addInInst, AddIn)
    Dim toolwin As EnvDTE80.ToolWindows
    toolwin = applicationObject.ToolWindows
    windowsVisEvents = CType(toolwin.DTE.Events, _
    Events2).WindowVisibilityEvents
End Sub
Private Sub windowsVisEvents_WindowHiding(ByVal Window As _
 EnvDTE.Window) Handles windowsVisEvents.WindowHiding
    MsgBox(Window.Caption & " is hiding.")
End Sub
Private Sub windowsVisEvents_WindowShowing(ByVal Window As _
 EnvDTE.Window) Handles windowsVisEvents.WindowShowing
    MsgBox(Window.Caption & " is hiding.")
End Sub
Public Sub OnDisconnection(ByVal disconnectMode _
 As ext_DisconnectMode, ByRef custom As Array) Implements  _
IDTExtensibility2.OnDisconnection
    windowsVisEvents = Nothing
End Sub
Public Sub OnAddInsUpdate(ByRef custom As Array) Implements _
 IDTExtensibility2.OnAddInsUpdate
End Sub
Public Sub OnStartupComplete(ByRef custom As Array) Implements _
 IDTExtensibility2.OnStartupComplete
End Sub
Public Sub OnBeginShutdown(ByRef custom As Array) Implements _
 IDTExtensibility2.OnBeginShutdown
End Sub
End Class
[C#]
namespace CS_Events_Code
{
using System;
using Microsoft.VisualStudio.CommandBars;
using Extensibility;
using EnvDTE;
using EnvDTE80;
using System.Windows.Forms;
  public class Connect : Object, IDTExtensibility2
  {
   public Connect()
   {
   }
   public void OnConnection(object application, ext_ConnectMode
 connectMode, object addInInst, ref Array custom)
    {
    applicationObject = (DTE2)application;
    addInInstance = (AddIn)addInInst;
    EnvDTE80.Events2 events = (EnvDTE80.Events2
 )applicationObject.Events;
    windowsVisEvents = 
(EnvDTE80.WindowVisibilityEvents)events.get_WindowVisibilityEvents
(null);
    // Connect to each delegate exposed from the windows visibiliy 
    // events object retrieved above
    windowsVisEvents.WindowHiding +=new 
_dispWindowVisibilityEvents_WindowHidingEventHandler
(this.WindowHiding); 
    windowsVisEvents.WindowShowing +=new 
_dispWindowVisibilityEvents_WindowShowingEventHandler
(this.WindowShowing);
   }
   public void OnDisconnection(ext_DisconnectMode disconnectMode,
 ref Array custom)
   {
    if (windowsVisEvents != null)
    {
        windowsVisEvents.WindowHiding -= new 
_dispWindowVisibilityEvents_WindowHidingEventHandler
(this.WindowHiding);
       windowsVisEvents.WindowShowing -= new 
_dispWindowVisibilityEvents_WindowShowingEventHandler
(this.WindowShowing);
   }
   }
   public void OnAddInsUpdate(ref Array custom)
   {
   }
public void OnStartupComplete(ref Array custom)
   {
   }
public void OnBeginShutdown(ref Array custom)
   {
   }
private DTE2 applicationObject;
private AddIn addInInstance;
private EnvDTE80.WindowVisibilityEvents windowsVisEvents;
public void WindowHiding(EnvDTE.Window winRef)
   {
    MessageBox.Show("The window " + winRef.Caption + " is hiding.");
   }
public void WindowShowing(EnvDTE.Window winRef)
   {
    MessageBox.Show("The window " + winRef.Caption + " is hiding.");
   }
  }
}

Sicurezza di .NET Framework

Attendibilità totale per il chiamante immediato. Impossibile utilizzare questo membro in codice parzialmente attendibile. Per altre informazioni, vedere Utilizzo di librerie da codice parzialmente attendibile.

Vedere anche

Riferimenti

WindowVisibilityEventsClass Classe

Spazio dei nomi EnvDTE80

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