// get the background colour of selected cells
const wxColour& GetSelectionBackground() const { return m_colBgSel; }
// get the background colour of selected cells
const wxColour& GetSelectionBackground() const { return m_colBgSel; }
void OnLeftDown(wxMouseEvent& event);
void OnLeftDClick(wxMouseEvent& event);
void OnSetOrKillFocus(wxFocusEvent& event);
void OnLeftDown(wxMouseEvent& event);
void OnLeftDClick(wxMouseEvent& event);
void OnSetOrKillFocus(wxFocusEvent& event);