hello,

I want to send mouse events to my class derived from QMainWindow. Therefore I installed an event filter which stores the corresponding events and then, if completed, sends to the main window. Basicly it is a mouse press, mouse move and mouse release event. I can see the events sent by sendEvent() in the eventFilter, but seem not to work within the main window (no reaction).

Here is the code:
Qt Code: 
  1. bool MyMainWindow::eventFilter( QObject *pObj, QEvent *pEvent )
  2. {
  3.    static bool bInternalSend = false;
  4.    static QMouseEvent cStartEvent(QEvent::MouseButtonPress, QCursor::pos(), Qt::MouseButton::LeftButton, 0, 0 );
  5.    static QMouseEvent cLastMoveEvent(QEvent::MouseMove, QCursor::pos(), Qt::MouseButton::LeftButton, 0, 0 );
  6.  
  7.    if ( !bInternalSend )
  8.    {
  9.       if ( pEvent->type() == QEvent::MouseButtonPress )
  10.       {
  11.          QMouseEvent *pMouseEvent = dynamic_cast<QMouseEvent*>(pEvent);
  12.          if ( pMouseEvent )
  13.             cStartEvent = *pMouseEvent;
  14.  
  15.          this->StartRubberBand();  // show the rubber band at the current mouse position, depending on the mouse cursor shape
  16.  
  17.          return true;
  18.       }
  19.       else if ( pEvent->type() == QEvent::MouseButtonRelease )
  20.       {
  21.          this->EndRubberBand(); // hide the rubber band
  22.  
  23.          QMouseEvent *pMouseEvent = dynamic_cast<QMouseEvent*>(pEvent);
  24.  
  25.          if ( pMouseEvent )
  26.          {
  27.             bInternalSend = true;
  28.             QApplication::sendEvent( this, &cStartEvent ); // send mouse press event
  29.             bInternalSend = true;
  30.             QApplication::sendEvent( this, &cLastMoveEvent ); // send last mouse move event
  31.          }
  32.       }
  33.       else if ( pEvent->type() == QEvent::MouseMove )
  34.       {
  35.          QMouseEvent *pMouseEvent = dynamic_cast<QMouseEvent*>(pEvent);
  36.          if ( pMouseEvent )
  37.             cLastMoveEvent = *pMouseEvent;
  38.  
  39.          this->MoveRubberBand(); // move the rubber band to the new mouse position
  40.  
  41.          return true;
  42.       }
  43.    }
  44.  
  45.    bInternalSend = false;
  46.  
  47.    return QMainWindow::eventFilter( pObj, pEvent );
  48. }
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Is it in general not possible to send mouse events to the main window? Or what is my fault?

Any help is appreciated!