// load file in edit and clear undo
if (!filename.empty()) m_filename = filename;
-// wxFile file (m_filename);
-// if (!file.IsOpened()) return false;
- ClearAll ();
-// long lng = file.Length ();
-// if (lng > 0) {
-// wxString buf;
-// wxChar *buff = buf.GetWriteBuf (lng);
-// file.Read (buff, lng);
-// buf.UngetWriteBuf ();
-// InsertText (0, buf);
-// }
-// file.Close();
wxStyledTextCtrl::LoadFile(m_filename);