IEの特定のタブをアクティブにする。(その２)

VB.NETに移植。

Function TabActivate(URL As String) As String
Dim Shell As Object=CreateObject("Shell.Application")
Dim ie As Object=Nothing
For Each ie In Shell.Windows()
  If ie.LocationURL=URL Then Exit For
  ie=Nothing
Next
If ie Is Nothing Then
  TabActivate="Not Found 1"
  Exit Function
End If
Dim wShell As Object=CreateObject("WScript.Shell")
If wShell.AppActivate(ie.Document.title) Then
  TabActivate=True
  Exit Function
End If
Dim ix As Object=Nothing
Dim LocationURL As String
For Each ix In Shell.Windows()
  If ix.HWND=ie.HWND Then
    If ix.Document.title<>"" Then If wShell.AppActivate(ix.Document.title) Then Exit For
    LocationURL=ix.LocationURL
    If Left(LocationURL,8)="file:///" Then
      LocationURL=Replace(Uri.UnescapeDataString(Mid(LocationURL,9)),"/","\")
    End If
    If wShell.AppActivate(LocationURL) Then Exit For
  End If
  ix=Nothing
Next
If ix Is Nothing Then
  TabActivate="Not Found 2"
  Exit Function
End If
For Each ix In Shell.Windows()
  If ix.HWND=ie.HWND Then
    wShell.SendKeys("^{tab}")
    Threading.Thread.Sleep(100)
    If wShell.AppActivate(ie.Document.title) Then
      TabActivate=True
      Exit Function
    End If
  End If
Next
TabActivate="Not Found 3"
End Function