I have image witih alpha data but I can't get it to show. I am using a canvas to draw.

Code:
public class Picture extends Canvas implements PaintListener
{
    private Image image;

    public Picture(Composite aParent, Image aImage)
    {
        super(aParent, SWT.NONE);
        addPaintListener(this);
        this.image = aImage;
    }

    public void paintControl(PaintEvent e)
    {
        if (getVisible())
        {
            //Rectangle rect = getBounds();
            //e.gc.fillRectangle(0, 0, rect.width, rect.height);
            if (image != null)
            {
                e.gc.drawImage(image, 0, 0);
            }
        }
    }

    protected void checkSubclass()
    {
    }
}
Any ideas what I am doing wrong?