HtmlElement.KeyPress event not firing.

Question

I cannot get the HtmlElement.KeyPress event to fire. I have tried setting Form.KeyPreview to True. I can get the Mouse events for the HtmlElement to work, so I believe the rest of the code is working, just not the KeyPress event. It just isn't firing.

Here is my code:

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Public Class Form1

Private WithEvents WebDocument As HtmlDocument
Private WithEvents WebElement As HtmlElement

Private Sub WebBrowser1_DocumentCompleted(sender As Object, e As WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
WebDocument = WebBrowser1.Document
End Sub

Private Sub WebDocument_MouseMove(sender As Object, e As HtmlElementEventArgs) Handles WebDocument.MouseMove

Dim Elem As HtmlElement = WebDocument.GetElementFromPoint(e.MousePosition)

If Not Elem Is Nothing Then
WebElement = Elem
End If
End Sub

Private Sub WebElement_KeyPress(sender As Object, e As HtmlElementEventArgs) Handles WebElement.KeyPress
txtKey.Text = e.KeyPressedCode
End Sub

End Class

Answer 1

Try following code

    Private WithEvents WebDocument As HtmlDocument
    Private WebElement As HtmlElement

    Private Sub WebBrowser1_DocumentCompleted(sender As Object, e As WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
        WebDocument = WebBrowser1.Document
    End Sub

    Private Sub WebDocument_MouseMove(sender As Object, e As HtmlElementEventArgs) Handles WebDocument.MouseMove

        Dim Elem As HtmlElement = WebDocument.GetElementFromPoint(e.MousePosition)

        If WebElement IsNot Nothing Then
            RemoveHandler WebElement.KeyPress, AddressOf WebElement_KeyPress
        End If

        If Not Elem Is Nothing Then
            WebElement = Elem
            AddHandler WebElement.KeyPress, AddressOf WebElement_KeyPress
        End If
    End Sub

    Private Sub WebElement_KeyPress(sender As Object, e As HtmlElementEventArgs)
        txtKey.Text = e.KeyPressedCode
    End Sub

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Gaurav Khanna | Microsoft .NET MVP | Microsoft Community Contributor

Answer 2

That did not work. That is essentially the same thing I had, but with more code.

I am successfully able to hook up other events, and they fire, and they do exactly what I expect.

The KeyPress event is not firing.

Answer 3

the element under mouse cursor is not necessary the one with keyboard focus.

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Visual C++ MVP

Answer 4

OK. How do I get it so that the element has the keyboard focus so that I can capture the KeyPress event?

Answer 5

you can get IHTMLDocument2::activeElement. 

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Visual C++ MVP

Answer 6

That is not enough information for me. I don't know what you mean. I am using VB, btw.

Answer 7

it is in the HtmlDocument.Focusingevent. Read the active element property of the document in the event handler.

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Visual C++ MVP