XSetForeground ((Display*) m_display, (GC) m_textGC, m_textBackgroundColour.GetPixel());
XFillRectangle( (Display*) m_display, (Window) m_window,
(GC) m_textGC, x, y, cx, cy );
XSetForeground ((Display*) m_display, (GC) m_textGC, m_textBackgroundColour.GetPixel());
XFillRectangle( (Display*) m_display, (Window) m_window,
(GC) m_textGC, x, y, cx, cy );