platform: linux, QT4.6.3

Hi All,

I want to simulate the mouse left click event
here is code snippets.

Qt Code: 
  1. #include "mainwindow.h"
  2. #include "ui_mainwindow.h"
  3. #include <QMouseEvent>
  4. #include <QGraphicsScene>
  5. #include <QGraphicsView>
  6. #include <QDebug>
  7.  
  8. MainWindow::MainWindow(QWidget *parent) :
  9.     QMainWindow(parent),
  10.     ui(new Ui::MainWindow)
  11. {
  12.     ui->setupUi(this);
  13.     scene_ = new QGraphicsScene(0,0, 480, 800,this);
  14.     view_ = new QGraphicsView(this);
  15.     view_->setScene(scene_);
  16.  
  17.  
  18. }
  19.  
  20. MainWindow::~MainWindow()
  21. {
  22.     delete ui;
  23. }
  24.  
  25. void MainWindow::mousePressEvent(QMouseEvent *event)
  26. {
  27.     if(event->button() == Qt::RightButton)
  28.     {
  29.          qDebug()<<"right";
  30.     }
  31.     else
  32.     {
  33.            qApp->postEvent(view_,event); //will crash here
  34.      }
  35. }
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when click left button on window, I want forward it to QGraphicsScene (I don't want to use the event filter). but when I click the left button,the app crashed,I was wondering why

Thanks advance for your help.
Best regards,
hb