dc.DrawLine( curX+xSize-2, curY+ySize-2, curX+xSize-3, curY+ySize-2 );
dc.DrawLine( curX+xSize-3, curY+ySize-1, curX+1, curY+ySize-1 );
dc.DrawLine( curX+xSize-2, curY+ySize-2, curX+xSize-3, curY+ySize-2 );
dc.DrawLine( curX+xSize-3, curY+ySize-1, curX+1, curY+ySize-1 );