How can i implement a doppel click im form 10g?

Question

Hi all,
i want to implement a doppel click in my trigger in form 10g, because, wenn i start my form, it appears correctly on the canvas, but it disappears directly when i click the canvas when my mouse. it reappears when i doppelclik on the canvas.
Have you any ideas how i can resolve this problem?
thanks in advance for the answers.
have a nice Weekend.

Answer 1

     I 'd like to play a soend wave file _ say when press a button package sound;
import oracle.forms.ui.VButton;
import java.applet.AudioClip;
import java.applet.Applet;
import java.net.URL;
import oracle.forms.properties.ID;
public class sound extends VButton
public final static ID PLAY = ID.registerProperty("PLAY");
public String sou_loc = "FILE:///C:\EAM_original.wav" ;
public sound()
public boolean setProperty(ID p0, Object p1)
if (p0==PLAY)
{ try
sou_loc = p1.toString();
URL sou = new URL(sou_loc);
AudioClip clip = Applet.newAudioClip(sou);
clip.play();
} catch (Exception ex)
{ex.printStackTrace();}
return super.setProperty(p0, p1);
}