Hello Cinta,
Sorry for the delay. JavaOne madness.
I just ran your code on Windows 7 with an nVidia card with no issues.
Can you file a Jira and describe your build and what version of javafx
you are using?
Also, paste the code from your email.
https://javafx-jira.kenai.com/secure/Dashboard.
I add canvas inside Group Node, and then I add two Button to that Group.
Why that button not available continuously?
This is my code:
package test;
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.
