WindowVisibilityEventsClass.WindowShowing Event

Definition

Namespace:

EnvDTE80

Assembly:

EnvDTE80.dll

Called when a tool window is made visible.

This API supports the product infrastructure and is not intended to be used directly from your code.

public:
 virtual event EnvDTE80::_dispWindowVisibilityEvents_WindowShowingEventHandler ^ WindowShowing;

public:
 virtual event EnvDTE80::_dispWindowVisibilityEvents_WindowShowingEventHandler ^ WindowShowing;

public virtual event EnvDTE80._dispWindowVisibilityEvents_WindowShowingEventHandler WindowShowing;

member this.WindowShowing : EnvDTE80._dispWindowVisibilityEvents_WindowShowingEventHandler 

Public Overridable Custom Event WindowShowing As _dispWindowVisibilityEvents_WindowShowingEventHandler Implements WindowShowing

Event Type

_dispWindowVisibilityEvents_WindowShowingEventHandler

Implements

WindowShowing

Examples

This example uses an add-in to connect WindowVisibilityEvents. Replace the code in Connect.vb or Connect.cs file with the example code below. Run this add-in and open and close the Command Window and the Output Window in the Visual Studio IDE to see event capturing methods in action.

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.");  
   }  
  }  
}