True if the specified Web page is displayed in the page window. Read-only Boolean.
expression.IsOpen
expression Required. An expression that returns a WebFile object.
Example
The following example uses the IsOpen property to check if a file named "index.htm" is open, and opens it if it isn't.
Private Sub CheckForOpenFile()
Dim myWeb As WebEx
Dim myFiles As WebFiles
Dim myFile As WebFile
Set myWeb = ActiveWeb
Set myFiles = myWeb.RootFolder.Files
With myWeb
For Each myFile In myFiles
If myFile.Name = "index.htm" Then
If myFile.IsOpen = True Then
MsgBox "This file is open, try again later."
Exit Sub
Else
myFile.Open
Exit Sub
End If
End If
Next
End With
End Sub