Change filename before saving image

Hello, given the code below how can I change the filename of the image? Perhaps just adding the date to the original filename to help prevent overwriting any images.

Private Sub btn_Add_Picture1_Click()
 Dim strFilter As String
     Dim strInputFileName As String

     strFilter = ahtAddFilterItem(strFilter, "JPEG Files (*.jpg)", "*.jpg")

     strInputFileName = ahtCommonFileOpenSave( _
                             Filter:=strFilter, _
                             OpenFile:=False, _
                             DialogTitle:="Save Image As...", _
                             Flags:=ahtOFN_HIDEREADONLY)
                             
                             
                             Dim strPath As String
strPath = strInputFileName

Dim strFile As String
strFile = Right(strPath, Len(strPath) - InStrRev(strPath, "\"))
                             
     If Len(strInputFileName) > 0 Then
          
     Dim fs As Object
 Dim oldPath As String, newPath As String
 oldPath = strInputFileName
 newPath = GetDefaultFilePath
 Set fs = CreateObject("Scripting.FileSystemObject")
 fs.CopyFile oldPath, newPath & "\" & strFile
 Set fs = Nothing
    Me.txt_Picture1.Visible = True
      Me.txt_Picture1.SetFocus
      Me.txt_Picture1.Text = strFile
      Me!Picture1.Picture = newPath & "\" & strFile
      Screen.PreviousControl.SetFocus
       Me.txt_Picture1.Visible = False
      
     Else
        
     End If
     
End Sub

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