grep subobject src/*.cc>grepsubobject070220.txt  (no comments)
-----------------------
src/display.cc:230:    topobject->doDraw(); // ReDraw ---> topobj->doDraw ---> subobject::Draw.
src/fileio.cc:1262:	assert(topobject!= NULL);	//bug: subobjects = 0 - RJL 030811
src/fprint.cc:580:    current = topobject->subobjects;

In void Ggroup::PrintGraphObjectList()
//clients: addnode,addlink,doPrint,doDraw,doDump
src/graphobject.cc:505:    for (current = subobjects; current != (List *) NULL; current = current -> next)

In c'tor graphobject::graphobject(hcg_key iid)
src/graphobject.cc:534:     	object->subobjects = new List (this, (List*) object->subobjects);

In Ggroup::~Ggroup()
src/graphobject.cc:551:   	if (subobjects != NULL)	// to avoid bug RJL 030811
src/graphobject.cc:552:    		delete subobjects;

In graphobject *Ggroup::findbyindex (hcg_key id)
src/graphobject.cc:617:    for (current = subobjects; current != (List *) NULL; current = current -> next)

In void Ggroup::doDraw():
src/graphobject.cc:908:  current = topobject->subobjects;	// most recent object (prepended to List)

In void Ggroup::doPrint(void):
src/graphobject.cc:951:    current = topobject->subobjects;

In void Ggroup::doselection (int absx, int absy) 
src/graphobject.cc:1058:          for (current = topobject->subobjects; current != NULL && 
src/graphobject.cc:1078:	  for (current = topobject->subobjects; current != NULL && 
src/graphobject.cc:1103:    if (current != NULL)  {//current points to selected subobject	
src/graphobject.cc:1110:    }//topobject->subobjects->object->getcurr() yields cs [NOT XXcurr.RJL040813]	

In void Ggroup::select_HN(Widget w, int x, int y) 
src/graphobject.cc:1237:    current = topobject->subobjects;

#if 0 (commented out old versio of Ggroup::select_HN: 1307-1375)
src/graphobject.cc:1321:  //  topobject->doselection(x, y); //expand to loop to search subobjects
src/graphobject.cc:1323:  assert(topobject->subobjects!= NULL);
src/graphobject.cc:1324:  for (current = topobject->subobjects; current != NULL; 
#endif

In int Ggroup::select_CG(Widget w, int x, int y)
#if 0  (commented out block)
src/graphobject.cc:1416:  for(current = topobject->subobjects; current != NULL 
#endif
src/graphobject.cc:1425:  for	(current = topobject->subobjects; 	

In void Ggroup::select_HL(Widget w, int x, int y)
src/graphobject.cc:1497:  for(current = topobject->subobjects; current != NULL; 


In void Ggroup::doDump()   
#ifdef DEBUG:
src/graphobject.cc:1922:    List *currentlp;	// init to topobject->subobjects below
src/graphobject.cc:1937:    currentlp = topobject ->subobjects; //List of drawable HN/HL/CG's
src/graphobject.cc:1952:    printf("\tdoDump: currentlp = topobject->subobjects = %px\n", currentlp);
#endif

In /*********************** (889-925) *************************
 * This action was lifted from doSNR1BUA1 and doSNR2BUA1: - RJL041128
 ******************************************************************** */
void doSNR12BUA1(float cx, float cy)  // SNR1 and SNR2 BUTTON_UP action:
At  src/nodeops.cc:920:		// side effects of dorecalc?
        topobject->dorecalc(id); //redundant with cs->recalc()?
        DP;ReDraw();//doSNR12BUA1: ---> topobj->doDraw() --*> subobject::Draw
        //updates node's links in/out, but not Captions.
Only client: 
node_resize() (nodeops.cc:635:887) 
827: case SResize_node1: //%%SRN1;
	case BUTTON_UP_EVENT: //%%SRN12BUA1=same action for SRN1,SRN2
827:          doSNR12BUA1(center_x, center_y);//WHY? no motion yet-RJL060421
828:          //ReDraw(); // node_resize: 050212; removed 060421(not resized)
        
861: case SResize_node2: //%%SRN2; handle subsequent BUTTON_MOVED and _UP
	 case BUTTON_UP_EVENT: //%%SRN2BUA1 = SRN1BUA1:  share same action 
861:          doSNR12BUA1(center_x, center_y);//==>ReDraw???
862:          ReDraw(); // node_resize: added 050212 (Again???) 
		(Comment out since done by client SRN2BUA1 but not SRN12BUA1 - RJL070220)
(BUTTON_MOVED does doresize())