Hi,

I would like to implement behaviour like in latest versions of firefox, where a user can drag a tab to the desktop and a new application is started.

I've almost figured out all i need to make it happen except for the "stop sign" that appears under the cursor when dragging stuff to the desktop...

In the code, i have the following mousemove event where the drag is implemented:
Qt Code: 
  1. void CMyTabBar::mouseMoveEvent(QMouseEvent *event)
  2. {
  3.  
  4.   if (!(event->buttons() & Qt::LeftButton))
  5.   {
  6.     // Wrong buttn, no drag 
  7.     return;
  8.   }
  9.   if ((event->pos() - dragStartPosition).manhattanLength()  < QApplication::startDragDistance())
  10.   {
  11.     // Distance too small, no drag yet !
  12.     return;
  13.   }
  14.  
  15.   if (event->buttons() & Qt::LeftButton  ) 
  16.   {
  17.     QDrag *drag = new QDrag(this);
  18.     QMimeData *mimeData = new QMimeData;
  19.     QPixmap* pixmap = new QPixmap(100,100);
  20.  
  21.     pixmap->grabWidget( this );
  22.  
  23.     drag->setMimeData(mimeData);
  24.     drag->setPixmap( *pixmap );
  25.  
  26.     Qt::DropAction dropAction = drag->exec(Qt::MoveAction);
  27.  
  28.     QWidget* t = drag->target () ;
  29.     if( t )
  30.     {
  31.       // there is a target....
  32.     }
  33.     else
  34.     {
  35.       // no target...
  36.       QWidget* tmp = new SomeWidget();
  37.       tmp->show();
  38.  
  39.     }
  40.     delete drag;
  41.     delete pixmap;
  42.   }
  43. }
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Any ideas on how to override or remove the stop-sign below the cursor ?

Thanks !