Something like this

Qt Code: 
  1. void RubberBand::onPasteBtn(){		
  2. 	qApp->installEventFilter( this );
  3. 	qApp->enter_loop();
  4. }
  5. void RubberBand::mousePressEvent(QMouseEvent *event) 
  6. {     
  7. 	//other stuffs
  8. }
  9. void RubberBand::mouseMoveEvent(QMouseEvent *event) 
  10. {    
  11. 	//other stuffs
  12. }  
  13. void RubberBand::mouseReleaseEvent(QMouseEvent *event) 
  14. {    
  15. 	//other stuffs
  16. } 
  17. bool RubberBand::eventFilter( QObject *obj, QEvent *e ){
  18.  
  19. 		if( (e->type() == QEvent::Paint) || (e->type() == QEvent::Resize) ||
  20. 			(e->type() == QEvent::FocusIn) || (e->type() == QEvent::FocusOut) )
  21. 		{
  22. 		return FALSE;
  23. 		}
  24. 		if ( e->type() == QEvent::KeyPress && ((QKeyEvent *)e)->key() == Qt::Key_Escape ){ 
  25. 			// remove this event filter and exit the current event loop
  26. 			qApp->removeEventFilter( this );
  27. 			qApp->exit_loop();
  28. 			delete m_Rubberband;
  29. 			m_Rubberband = 0;
  30. 			return TRUE;                        
  31. 		}		
  32. 		if( e->type() == QEvent::MouseMove ){		
  33. 			m_pasteRect.setTop( ((QMouseEvent *)e)->pos().x() );
  34. 			m_pasteRect.setLeft( ((QMouseEvent *)e)->pos().y() );
  35.  
  36. 			m_pasteRect.setBottom( ((QMouseEvent *)e)->pos().x() + 50 );	
  37. 			m_pasteRect.setRight( ((QMouseEvent *)e)->pos().y() + 50 );		
  38.  
  39. 			if( !m_Rubberband )
  40. 				m_Rubberband = new QRubberBand(QRubberBand::Rectangle, this);				
  41.  
  42. 			m_Rubberband->setGeometry( m_pasteRect );
  43. 			m_Rubberband->show();
  44.  
  45. 			return TRUE;
  46. 		}		
  47. 		else if( e->type() == QEvent::MouseButtonRelease ){
  48. 			// remove this event filter and exit the current event loop
  49. 			qApp->removeEventFilter( this );
  50. 			qApp->exit_loop();
  51. 			delete m_Rubberband;
  52. 			m_Rubberband = 0;
  53. 			return TRUE;                        // eat event
  54. 		}	
  55. 	return TRUE;                           // block standard event processing
  56. }
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Now in the above code there are both events and eventFilter. So do you still I'm doing something wrong above. Please bear with me. I want to clear my fundas...
Thanks