[platform-swt-dev] Subclassing Text control.

[Arnaud De Muyser <ademuyser@xxxxxxxxxx>]

I'm working of a code that will be shipped
on Windows only.
As I need to get raw keyCode from window
API (as I need virtual keys inputs), I  would like to redefine Control.WM_KEYDOWN(int,int)
method.
I choose to subclass org.eclipse.swt.widgets.Text
class and redefine WM_KEYDOWN() method (see code below).
Running my program produces the following
ouputs:

MyText.checkSubclass()
MyText.MyText()
//hit 'k' key : output the following
line 16 times (? why)
MyText.$1.modifiyText()
MyText.$1.modifiyText()
MyText.$1.modifiyText()

I'm surprised that I never see trace
I've put inside redefined WM_KEYDOWN() method, whereas I can see traces
I've put inside modifyListener,
even if Eclipse Java editor show me
that I'm redefining this method (little green triangle in outline).

What is wrong in my code ?
How can I get raw virtual keyCode on
windows using a SWT  Text control ?

I'm suspecting that as this code is
including in an Eclipse plugin, it uses different ClassLoader that org.eclipse.swt
plugin,
meaning that my class "org.eclipse.swt.widget.MyText"
is (virtually) defined in a separate package than the "org.eclipse.swt.widget.Control"
class. And because WM_KEYDOWN() method
have package visibilty, the method I think I'm redefining in the class
MyText() is simply
another method which doesn't redefine
Control.WM_KEYDOW.

Thanks for your help.

Arnaud.

PS: Code for MyText class:

package org.eclipse.swt.widgets; //please
note I'm using original swt's package name, even if my class is inside
another plugin.

import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.internal.win32.LRESULT;
import org.eclipse.swt.internal.win32.OS;

public class MyText extends Text
{
  public MyText( Composite c, int
style )
  {
      super( c, style
);
System.out.println("MyText.MyText()");

      addModifyListener(
new ModifyListener() {
        public void
modifyText(ModifyEvent e) {
           
MyText.this.setText(""); //autoerase text
System.out.println("MyText.$1.modifiyText()");
           
        }
      });
  }
  
  LRESULT WM_KEYDOWN (int wParam,
int lParam) 
  {
System.out.println("MyText.WM_KEYDOWN("+wParam+",
"+lParam+")"); 
      return super.WM_KEYDOWN(
wParam, lParam );
  }
  
  protected void checkSubclass()
  {
System.out.println("MyText.checkSubclass()");
 
  }
}