SetMarginType (m_LineNrID, wxSTC_MARGIN_NUMBER);
StyleSetForeground (wxSTC_STYLE_LINENUMBER, wxColour (_T("DARK GREY")));
StyleSetBackground (wxSTC_STYLE_LINENUMBER, wxColour (_T("WHITE")));
SetMarginType (m_LineNrID, wxSTC_MARGIN_NUMBER);
StyleSetForeground (wxSTC_STYLE_LINENUMBER, wxColour (_T("DARK GREY")));
StyleSetBackground (wxSTC_STYLE_LINENUMBER, wxColour (_T("WHITE")));