public PictureBox ()
{
//recalc = true;
no_update = 0;
SetStyle (ControlStyles.OptimizedDoubleBuffer, true);
SetStyle (ControlStyles.Opaque, false);
SetStyle (ControlStyles.Selectable, false);
SetStyle (ControlStyles.SupportsTransparentBackColor, true);
HandleCreated += new EventHandler(PictureBox_HandleCreated);
//initial_image = ResourceImageLoader.Get ("image-x-generic.png");
//error_image = ResourceImageLoader.Get ("image-missing.png");
}
#endregion // Public Constructor