I am trying to have a QMainWindow capture keyPressEvents Qt::Key_Up and Qt::Key_Down. Unfortunately in my keyPressEvent( ) function, the print statements I have for these 2 keys do not print. My main window contains about 12 push buttons, 2 sliders, and 2 QGLWidgets. Upon further observation I noticed my 2nd slider bar was moving with the up and down keys.

Is there a way to get my sliders and push buttons from accpeting the key presses so my main window can receive them? My keyPressEvent looks like this:


Qt Code: 
  1. void PlotWindow::keyPressEvent( QKeyEvent *evnt )
  2. {
  3.    switch( evnt->key( ) )
  4.    {
  5.       case Qt::Key_Control:
  6.          evnt->accept( );
  7.          mpFirstPlot->setControlKeyPressed( true );
  8.          break;
  9.       case Qt::Key_Up:
  10.          evnt->accept( );
  11. fprintf( stderr, "up pressed\n" );
  12.          break;
  13.       case Qt::Key_Down:
  14.          evnt->accept( );
  15. fprintf( stderr, "down pressed\n" );
  16.          break;
  17.       default:
  18.          evnt->ignore( );
  19.    }
  20. }
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Capturing the Control key works fine but I do not get anything to capture the up and down keys. Thanks for your help!