Hello,

I try to retrieve Print screen when I click on a button in my personal module. 

With DNN, the clipboard is empty

With a normal asp.net project, the clipboard contains my bitmap.

Is it due to the security settings ?

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This is my source code :

        Public Sub lkPasteScreenshot_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lkPasteScreenshot.Click

            Dim cbThread As New Thread(New ThreadStart(AddressOf PasteClipboard))
            cbThread.SetApartmentState(ApartmentState.STA)
            cbThread.Start()
            cbThread.Join()

        End Sub

        Public Sub PasteClipboard()

            Dim d As System.Windows.forms.IDataObject = System.Windows.forms.Clipboard.GetDataObject()

            If (d.GetDataPresent(System.Windows.forms.Dataformats.Bitmap)) Then

'-------------------- NO ENTRY HERE WITH DNN ! ------------------

                Dim TmpImage As String = "DesktopModules\HDE\Uploads\tmp_Screenshot.jpeg"
                Dim bmp As System.Drawing.Bitmap = CType(d.GetData(System.Windows.forms.Dataformats.Bitmap), System.Drawing.Bitmap)
                bmp.Save(Request.PhysicalApplicationPath & TmpImage)
                imgScreenshot.ImageUrl = "~/" & TmpImage.Replace("\", "/")
            Else
                lbErrorScreenshot.Text = "No print screen detected..."
            End If

        End Sub

Johnny, if you take time to create a new website and execute my small code above, you'll see it's possible to display your screen capture...

I searched, during a long time, the reason for which that does not work in a DNN module. I don't find anything but I think the security in web.config cause that.

If someone can help me to implement this correctly, it's very nice .