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  1. JDK
  2. JDK-4182221

KEY_PRESSED event not being generated for some keys

    Details

    • Subcomponent:
    • CPU:
      x86
    • OS:
      windows_nt

      Description



      Name: eh37734 Date: 10/16/98


      Dear Bug Report,


      On a Wintel system running Windows NT 4.0 SP 3, executing the program below under
      JDK 1.2 Beta 4 and then pressing the "+" key on main part of the keyboard goes not generate a
      KEY_PRESSED event. Only a KEY_TYPED event is generated. JDK 1.1.6 does generate a KEY_PRESSED
      event for the same program.

      In JDK 1.2 Beta 4 the "+" key on the main keyboard does not generate the KEY_PRESSED event,
      but the "+" key on the numeric keypad does.


      There is a similar problem with the "-" key.


      Sincerely,



      Thorn Green


      Program Code:
      -------------


      package geomdir;


      import java.awt.*;
      import java.awt.event.*;
      import com.sun.java.swing.*;
      import com.sun.java.swing.border.*;


      class MyComp extends JComponent
      {
      JFrame ParentFrame = null;

      public MyComp( JFrame in )
      {
      ParentFrame = in;
      enableEvents( AWTEvent.KEY_EVENT_MASK );
      }

      public void processKeyEvent( KeyEvent e )

      {
      char c = e.getKeyChar();

      if( c == '+' )
      {
      if( e.getID() == KeyEvent.KEY_PRESSED )
      System.out.println( "Pressed a Plus!!!" );

      if( e.getID() == KeyEvent.KEY_RELEASED )
      System.out.println( "Released a Plus!!!" );

      if( e.getID() == KeyEvent.KEY_TYPED )
      System.out.println( "Key Typed Event on Plus!!!" );
      }

      super.processKeyEvent( e );
      }

      public boolean isFocusTraversable( )
      { return( true ); }

      }


      public class TestApp2 extends Object
      {
      protected static JFrame MyF;
      protected static MyComp MyKit;

      protected static void initialize( String argv[] )
      {
      MyF = new JFrame();
      MyF.setSize( 400 , 400 );
      MyF.pack();
      MyF.setTitle( "Model Window" );
      MyKit = new MyComp( MyF );
      JPanel kPan = new JPanel();

      MyF.getContentPane().setLayout( new BorderLayout( 0 , 0 ) );
      MyF.getContentPane().add( "Center" , MyKit );
      }

      public static void main( String argv[] )
      {
      initialize( argv );
      MyF.pack();
      MyF.setSize( 400 , 400 );
      MyF.setVisible( true );
      MyKit.requestFocus();
      }


      }
      (Review ID: 37601)
      ======================================================================

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            • Assignee:
              ehawkessunw Eric Hawkes (Inactive)
              Reporter:
              ehawkessunw Eric Hawkes (Inactive)
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              • Created:
                Updated:
                Resolved:
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