VB.NET2005控制WebBrowser弹出页面的行为
王明洪
实用效果挺好，资料来自日本的一个BBS。
Option Strict On
Imports System.Runtime.InteropServices
Imports System.Security.Permissions
Class ExWebBrowser
Inherits WebBrowser
Private cookie As AxHost.ConnectionPointCookie
Private helper As WebBrowser2EventHelper
<System.ComponentModel.DesignerSerializationVisibility(System.ComponentModel.DesignerSerializationVisibility.Hidden)> _
<System.Runtime.InteropServices.DispIdAttribute(200)> _
Public ReadOnly Property Application() As Object
Get
If IsNothing(Me.ActiveXInstance) Then
Throw New AxHost.InvalidActiveXStateException(“Application”, AxHost.ActiveXInvokeKind.PropertyGet)
End If
Return DirectCast(Me.ActiveXInstance, IWebBrowser2).Application
End Get
End Property
<System.ComponentModel.DesignerSerializationVisibility(System.ComponentModel.DesignerSerializationVisibility.Hidden)> _
<System.Runtime.InteropServices.DispIdAttribute(552)> _
Public Property RegisterAsBrowser() As Boolean
Get
If IsNothing(Me.ActiveXInstance) Then
Throw New AxHost.InvalidActiveXStateException(“RegisterAsBrowser”, AxHost.ActiveXInvokeKind.PropertyGet)
End If
Return DirectCast(Me.ActiveXInstance, IWebBrowser2).RegisterAsBrowser
End Get
Set(ByVal value As Boolean)
If IsNothing(Me.ActiveXInstance) Then
Throw New AxHost.InvalidActiveXStateException(“RegisterAsBrowser”, AxHost.ActiveXInvokeKind.PropertySet)
End If
DirectCast(Me.ActiveXInstance, IWebBrowser2).RegisterAsBrowser = value
End Set
End Property
<PermissionSetAttribute(SecurityAction.LinkDemand, Name:=”FullTrust”)> _
Protected Overrides Sub CreateSink()
MyBase.CreateSink()
helper = New WebBrowser2EventHelper(Me)
cookie = New AxHost.ConnectionPointCookie(Me.ActiveXInstance, helper, GetType(DWebBrowserEvents2))
End Sub
<PermissionSetAttribute(SecurityAction.LinkDemand, Name:=”FullTrust”)> _
Protected Overrides Sub DetachSink()
If cookie IsNot Nothing Then
cookie.Disconnect()
cookie = Nothing
End If
MyBase.DetachSink()
End Sub
Public Event NewWindow2 As WebBrowserNewWindow2EventHandler
Protected Overridable Sub OnNewWindow2(ByVal e As WebBrowserNewWindow2EventArgs)
RaiseEvent NewWindow2(Me, e)
End Sub
Private Class WebBrowser2EventHelper
Inherits StandardOleMarshalObject
Implements DWebBrowserEvents2
Private parent As ExWebBrowser
Public Sub New(ByVal parent As ExWebBrowser)
Me.parent = parent
End Sub
Public Sub NewWindow2(ByRef ppDisp As Object, ByRef cancel As Boolean) Implements DWebBrowserEvents2.NewWindow2
Dim e As New WebBrowserNewWindow2EventArgs(ppDisp)
Me.parent.OnNewWindow2(e)
ppDisp = e.ppDisp
cancel = e.Cancel
End Sub
End Class
End Class
Public Delegate Sub WebBrowserNewWindow2EventHandler(ByVal sender As Object, ByVal e As WebBrowserNewWindow2EventArgs)
Public Class WebBrowserNewWindow2EventArgs
Inherits System.ComponentModel.CancelEventArgs
Private ppDispValue As Object
Public Sub New(ByVal ppDisp As Object)
Me.ppDispValue = ppDisp
End Sub
Public Property ppDisp() As Object
Get
Return ppDispValue
End Get
Set(ByVal value As Object)
ppDispValue = value
End Set
End Property
End Class
<ComImport(), Guid(“34A715A0-6587-11D0-924A-0020AFC7AC4D”), _
InterfaceType(ComInterfaceType.InterfaceIsIDispatch)> _
Public Interface DWebBrowserEvents2
<DispId(DISPID.NEWWINDOW2)> Sub NewWindow2( _
<[In](), Out(), MarshalAs(UnmanagedType.IDispatch)> ByRef ppDisp As Object, _
<[In](), Out()> ByRef cancel As Boolean)
End Interface
Public Enum DISPID
NEWWINDOW2 = 251
End Enum
<ComImport(), Guid(“D30C1661-CDAF-11D0-8A3E-00C04FC9E26E”), _
InterfaceType(ComInterfaceType.InterfaceIsIDispatch)> _
Public Interface IWebBrowser2
ReadOnly Property Application() As <MarshalAs(UnmanagedType.IDispatch)> Object
Property RegisterAsBrowser() As <MarshalAs(UnmanagedType.VariantBool)> Boolean
End Interface
引文来源 VB.NET2005控制WebBrowser弹出页面的行为_ICSOFT_新浪博客