Passing a TopoDS_Shape as an Argument in a QT Signal and Slot

Hello There,

is there anyway of passing a TopoDS_Shape as a signal and slot argument.
I have been trying to no success.

when i call emit finishshape( myshape) the connected SLOTS are not called, i switch the signature of my SIGNAL AND SLOT to work with an int and it works, so it seems like the SIGNAL and SLOT mechanism in QT works only with standard types and QObject types, or i could be mistaken.

is this connected to the fact the TopoDS_Shape doesnt have a == operator and or its const & definition? ---> dont quote me on any of this, im not a computer scientist, so i dont understand most of these concepts.

my last resort will be to make a simple QObject wrapper that contains a TopoDS_Shape and use it as a message object.
I am trying to avoid this option, hopefully the solution could be solve with a typedef.

Best,

AlexP

**************************************

this is my class:

#pragma once

#include
#include

class booleanthread : public QThread
{
Q_OBJECT
public:
booleanthread(QObject *parent = 0,TopoDS_Shape& sh1 = TopoDS_Shape(),TopoDS_Shape& sh2 = TopoDS_Shape())
: QThread(parent),theshape1(sh1),theshape2(sh2)
{
int nullcount = 0;
if(sh1.IsNull()) nullcount++;
if(sh2.IsNull()) nullcount++;

theshape1 = sh1;
theshape2 = sh2;

if(theshape1.IsNull()) nullcount++;
if(theshape2.IsNull()) nullcount++;

inputs

};
~booleanthread(void);

signals:
void finishedshape(TopoDS_Shape newval);

protected:
void run();

private:

TopoDS_Shape& theshape1;
TopoDS_Shape& theshape2;
QList inputs;

};

#include "booleanthread.h"
#include
#include

booleanthread::~booleanthread(void)
{
}

void booleanthread::run()
{
//BRepAlgoAPI_BooleanOperation* myop = new BRepAlgoAPI_BooleanOperation(obj1, obj2, BOP_COMMON);
//myop->Build();
//TopoDS_Shape result = myop->Shape();
//int counter = 0;
// if(theshape1.IsNull()) return;
// if(theshape2.IsNull()) return;

//BRepAlgoAPI_Common* bcom = new BRepAlgoAPI_Common(theshape1,theshape2);
TopoDS_Shape intcrv = hsf::move(theshape1,gp_Vec(0,0,10));

emit finishedshape(intcrv);

/*try{ const TopoDS_Shape & result = bcom->Shape();
emit finishedshape(result);
} catch(...) {
int errorstat = bcom->ErrorStatus();
qDebug() }
*/

//while(!bcom->IsDone())
// {
//
//
// }

/*const TopoDS_Shape & result = bcom->Shape();*/

//int nbp;
//TopoDS_Shape result = hsf::AddNewIntersectionPointMulti(obj1,obj2);

};

**************************************************

// i am calling from this other code on the main function.

booleanthread* bt = new booleanthread(this,shapelist[0],EOS);
threadlist

connect(threadlist.last(),SIGNAL(finishedshape( TopoDS_Shape )),this,SLOT(appendtolist( TopoDS_Shape )));
threadlist.last()->start();