I want to make my QVideoWidget fullscreen on mouse click and back.
I've implemented the mouse click and have tried two methods to go fullscreen but both are not working.

Method 1:
Qt Code: 
  1. w->setWindowState(w->windowState() ^ Qt::WindowFullScreen);
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And to come back
Qt Code: 
  1. w->setWindowState(w->windowState() & ~Qt::WindowMinimized | Qt::WindowActive);
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Nothing happens in this case.

Method 2: (found after some good internet searching)
Qt Code: 
  1. void mousePressEvent(QMouseEvent*) {
  2. if (maxMode== false)
  3. {
  4.     m_enOrigWindowFlags = this->windowFlags();
  5.     m_pSize = this->size();
  6.     this->setParent(0);
  7.     this->setWindowFlags( Qt::FramelessWindowHint|Qt::WindowStaysOnTopHint);
  8.     this->showFullScreen();
  9.     maxMode = true;
  10. }
  11. else
  12. {
  13.      this->setParent(m_pParent);
  14.      this ->resize(m_pSize);
  15.      this->overrideWindowFlags(m_enOrigWindowFlags);
  16.      this->show();
  17.      maxMode =  false;
  18. }
  19. }
  20. };
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This method works fine to get to fullscreen. But on the second click the video widget comes in a new window and not on the original position on the Ui.

Please help me. Thanks!