/// <summary>
/// Get the font name and flags of a particular character.
/// </summary>
/// <param name="charIndex">Zero-based index of the character.</param>
/// <returns></returns>
public string GetFontNameInfo(int charIndex)
{
// buffer[] is in UTF - 8 encoding.Return 0 on failure.
byte[] buffer = new byte[1024 * 768 * 4];
var length = PDFium.FPDFText_GetFontInfo(this.Handle, charIndex, buffer, (uint)buffer.Length, out int fontFlags);
if (length > 0)
{
return(Encoding.UTF8.GetString(buffer));
}
return(string.Empty);
}