The following example shows how to list the captions of only visible columns in the current folder:

  Columns := TStringList.Create;
  JamSystemShellView.GetStrings(Columns, False);

  for i := 0 to Columns.Count - 1 do
    ShowMessage(Columns[i]);

  Columns.Free;

To list all available columns in the current folder JamSystemShellView.GetStrings(Columns, True); can be called instead.