FIX: Setting Colors for List/Choice Control Fails

• Microsoft Win32 Virtual Machine

SYMPTOMS

When trying to change the color of the List or Choice control using SetBackground and SetForeground, you will notice that it does not set the colors properly.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This bug has been corrected in the Java Virtual Machine distributed with Internet Explorer 4.01 Service Pack 1 and later.

MORE INFORMATION

Steps to Reproduce Behavior

1. Save the following to a file named TestColor.java:




      import java.applet.Applet;
      import java.awt.*;

      public class TestColor extends Applet
      {
         public void init()
         {
            List l = new List();
            add(l);
            l.addItem( "1" );
            l.addItem( "2" );
            l.addItem( "3" );
            l.setBackground(Color.blue);
            l.setForeground(Color.yellow);

            Choice c = new Choice();
            add( c );
            c.addItem( "1" );
            c.addItem( "2" );
            c.addItem( "3" );
            c.setBackground(Color.blue);

            Scrollbar sb = new Scrollbar(Scrollbar.VERTICAL);
            add( sb);
            sb.setBackground(Color.blue);
         }
      } 

2. Compile the file.



3. Run the applet in Internet Explorer 4.0x.



4. The Choice control paints the specified background color, blue, in the button that drops down the choices. The expected system color for buttons is gray in the default Window desktop theme. The Foreground color of the List control does not change to yellow.
   
   In addition, the Scrollbar's arrows and thumb change to the new background color, blue, instead of the expected system color for buttons (gray in the default Window desktop theme).

Additional query words: color choice list background kbDSupport

Keywords : JVM
Version : WINDOWS:
Platform : WINDOWS
Issue type : kbbug