protected abstract void Load(PreviewHandlerControl c);
protected override void Load(PreviewHandlerControl c)
{
c.Load(new ReadOnlyIStreamStream(stream));
}
protected PreviewHandler()
{
previewControl = CreatePreviewHandlerControl(); // NOTE: shouldn't call virtual function from constructor; see article for more information
previewControl.Handle.GetHashCode();
previewControl.BackColor = SystemColors.Window;
}
