- m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)),
- GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth,
+ m_gc = (WXGC) XCreateGC (display, (Drawable)m_pixmap/* RootWindow (display, DefaultScreen (display)) */,
+ GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode,