public void InsertTextAsRtf(string _text, Font _font, RtfColor _textColor, RtfColor _backColor) {
StringBuilder _rtf = new StringBuilder();
// Append the RTF header
_rtf.Append(RTF_HEADER);
// Create the font table from the font passed in and append it to the
// RTF string
_rtf.Append(GetFontTable(_font));
// Create the color table from the colors passed in and append it to the
// RTF string
_rtf.Append(GetColorTable(_textColor, _backColor));
// Create the document area from the text to be added as RTF and append
// it to the RTF string.
_rtf.Append(GetDocumentArea(_text, _font));
this.SelectedRtf = _rtf.ToString();
}
