function g_WindPSLCallback(hObject,varargin)
   
   global params
   
   currParamID    = get(hObject,'UserData');
   selectedWind   = params.params(currParamID).val.type;
   currWindLength = numel(params.params(currParamID).val.win);
   currPSL        = round(str2double(get(hObject,'String')));
   set(hObject,'String',num2str(currPSL))
   
   windobj    = specwin(selectedWind,currWindLength, currPSL);
   params  = pset(params,params.params(currParamID).key,windobj);
   
   set(findobj('Tag','apply'),'Enable','on');
   set(findobj('Tag','undo'),'Enable','on');
   
end