protected override void OnMouseMove(MouseEventArgs e)
{
	base.OnMouseMove(e);

	var loc = e.GetPosition(this);
	int idx = PointInPage(loc);
	if (idx >= 0)
	{
		Point page_point = ClientToPage(idx, loc);
		var webLink = Document.Pages[idx].Text.WebLinks.GetWebLinkAtPoint((float)page_point.X, (float)page_point.Y);
		var pdfLink = Document.Pages[idx].Links.GetLinkAtPoint((float)page_point.X, (float)page_point.Y);

		if (webLink != null || pdfLink != null)
		{
			//Any code for showing tooltip
		}
	}
}