_NOCHANGE
if (win->_firstch[y] == _NOCHANGE)
minx = _NOCHANGE;
if (minx == _NOCHANGE)
if (minx != _NOCHANGE)
minx = _NOCHANGE;
if (minx == _NOCHANGE)
minx = _NOCHANGE;
if (minx == _NOCHANGE)
if (minx != _NOCHANGE)
win->_firstch[i] = _NOCHANGE;
win->_lastch[i] = _NOCHANGE;
win->_firstch[wy] = _NOCHANGE;
if (win->_firstch[wy] != _NOCHANGE)
if (win->_firstch[y] == _NOCHANGE) {