🚀 go-pugleaf

I have found a VB function that exports a chart(in bitmap form) that is
being displayed by a VB program(not a webpage). This is that function:

Private Sub cmdsave_Click()
  On Error GoTo saverr
  Dim strsavefile As String
  With dlgChart ' CommonDialog object
    .Filter = "Pictures (*.bmp)|*.bmp"
    .DefaultExt = "bmp"
    .CancelError = True
    .ShowSave
    strsavefile = .FileName
    If strsavefile = "" Then Exit Sub
  End With
  MSChart1.EditCopy
  SavePicture Clipboard.GetData, strsavefile
  Exit Sub
saverr:
  MsgBox Err.Description

End Sub

I need to use this same function in an HTML page that has a chart embedded
in it as well. How do I do this and call it from a button? Do I have to do
this within an ASP? I am a complete noob with respect to VB so please bare
with me.

Thanks in advance!