TROUBLE PICKING OBJECTS

Hallo! I'm trying to select a node by clicking with left mouse button
on them with the following piece of code:

When I run this code, the objects highlighted are mostly near my mouse
click. But they are weirdly picked(not a simple translation from where
I've clicked).

myViewer::myViewer( QWidget *parent, const char *name)
  :myQglViewer(parent,name)
{
  myViewer::selection = new SoSelection; // myQglViewer parent class
created a scene
                                                             // ->
make myViewer::selection new root for that scene

  myViewer::selection->ref();

  myViewer::selection->addChild(scene);

  sm->setSceneGraph(myViewer::selection);

  myViewer::selection->policy = SoSelection::****FT;

  myViewer::selection->addSelectionCallback(&myViewer::madeSelection,
(void*)1L);
  myViewer::selection-
>addDeselectionCallback(&myViewer::madeSelection, (void*)0L);

  modelGeometry = new SoGroup;

  scene->addChild(modelGeometry);

  //fill scene with objects
  modelGeometry->addChild(...)
  modelGeometry->addChild(...)
  ...
}

this calls myQglViewer(parent, name) to create a QGLWidget with
members: scene, scenemanager, camera and headlight which looks as
follows:

myQglViewer::myQglViewer(QWidget *parent, const char *name)
    : QGLWidget(QGLFormat(QGL::DoubleBuffer | QGL::DepthBuffer |
QGL::AlphaChannel | QGL::DirectRendering) , parent, name),
{
  SoDB::init();

  vpr = new SbView****tRegion(400, 400);
  sm = new SoSceneManager();
  scene = new SoSeparator();
  scene->ref();
  camera = new SoPerspectiveCamera;
  scene->addChild(camera);

  headlight   = new SoPointLight;
  scene->addChild(headlight);

  sm->setSceneGraph(scene);


  SoGLRenderAction *ra = new SoBoxHighlightRenderAction(*vpr);
  sm->setGLRenderAction(ra);
}

Now because I'm not using SoQtRenderArea or similar cl***** I have to
translate QEvent to SoEvent manually
I do it this way:

void myViewer::mousePressEvent(QMouseEvent *e)
{
  myQglViewer::mousePressEvent(e); //allows parent viewer to keep
rotating view on mouse interaction

  if(e->button() == e->LeftButton)
  {
    SoMouseButtonEvent *mbev = new SoMouseButtonEvent;

    mbev->setButton(SoMouseButtonEvent::BUTTON1);
    mbev->setState(SoButtonEvent::DOWN);
    mbev->setPosition(SbVec2s(e->x(), vpr->getWindowSize()[1] - e->y()
- 1));
    mbev->setAltDown((e->state()&e->AltButton));
    mbev->setCtrlDown((e->state()&e->ControlButton));
    mbev->set****ftDown((e->state()&e->****ftButton));
    mbev->setTime(SbTime::getTimeOfDay());

    cout << "MOUSE POS x = " << e->x() << "; y = " << e->y() << endl;

    SoHandleEventAction *heva = new SoHandleEventAction(*vpr);
    heva->setEvent(mbev);
    heva->apply(myViewer::selection);
  }
}

I do the same for mouseReleaseEvent and mouseMoveEvent. mouseMoveEvent
I translate to Location2Event


Your help is very appreciated=) Didn't sleep the whole night to fix
this, but no luck!