// ----------------------------------------------------------------------------
#define wxSP_NOBORDER 0x0000
+#define wxSP_THIN_SASH 0x0000 // NB: the default is 3D sash
#define wxSP_NOSASH 0x0010
#define wxSP_PERMIT_UNSPLIT 0x0040
#define wxSP_LIVE_UPDATE 0x0080