// centre with respect to the the parent window
void Centre( int direction = wxHORIZONTAL );
void Center( int direction = wxHORIZONTAL ) { Centre(direction); }
// centre with respect to the the parent window
void Centre( int direction = wxHORIZONTAL );
void Center( int direction = wxHORIZONTAL ) { Centre(direction); }