Hi Steve,
It doesn't work.
1) Should this code be assigned to all "keys" or only to BACKSPACE "key"?:

Sub PseudoKeyboard(oSh As Shape)

   Dim strShapeText As String
   strShapeText = oSh.TextFrame.TextRange.Text

   With ActivePresentation.Slides(1).Shapes("TextBox1")
       With .OLEFormat.Object
       Select Case oSh.TextFrame.TextRange.Text
       
              Case Is = "Backspace"
                ' delete the last character
                .Text = Left$(.Text, Len(.Text) - 1)
              Case Else
                .Text = .Text & strShapeText
       End Select
       End With
   End With
End Sub

I assign it to the BACKSPACE "key", and it still doesn't backspace.

2) I assigned my SAVE button's click action as Run Macro:  SaveMe

Sub SaveMe()
 ' ALL ON ONE LINE:
 Call WriteStringToFile("C:\Temp\BlahBlah.txt",
ActivePresentation.Slides(1).Shapes("TextBox1").OLEFormat.Object.Text)
 ' Substitute the path/file.ext you want to use above
End Sub

Sub WriteStringToFile(pFileName as String, pString as String)
  Dim intFileNum as Integer
  intFileNum = FreeFile
  Open pFilename For Output As intFileNum
  Print #intFileNum, pString
  Close intFileNum
End Sub

... and I changed the path to C:\Temp\Testfile.txt, and it doesn't save text
in this file.

Your On-screen Keyboard sample works fine. I can just use it for the
Backspace issue. But should I do with the SAVE issue?

Any suggestions?

Sorry for confusion,
Serge

Hi again Steve,

I've handled the BACKSPACE issue, but still cannot resolve the SAVE button
problem. Once I change the path/file.ext from your "C:\Temp\BlahBlah.txt"
(below), to my "C:\Temp\Infofile.txt", a little textbox pops-up saying
"Expected: expression".
I tried to read Help on that, but I'm still far from understanding stuff
like "..you may have forgotten to specify a value for a named argument.." and
how to correct that.

Do you know how to correct it? I just want the SAVE button to send the
contact info, users type in the textbox, to my "Infofile.txt" file, and once
it's saved there, the textbox on presentation should become empty again for
the next user. Is it possible?

Thank you for your patience,
Serge

Hi Steve,

I also thought that maybe you could post a similar "on-screen keyboard"
sample (as you suggest above) but with a shape "SAVE" (or "SUBMIT") and its
assigned macro to make it send the info from the text-box to a specified
file. That's the ultimate reason of having the on-screen keyboard - to
collect info, so it would be also useful for more people.

Thank you,

Serge