private static extern uint HPDF_Page_TextRect(IntPtr page, float left, float top, float right, float bottom, string text, HPdfTextAlignment align, ref uint len);
public void TextRect(float left, float top, float right, float bottom, string text, HPdfTextAlignment align, ref uint len) { HPDF_Page_TextRect(hpage, left, top, right, bottom, text, align, ref len); }