richTextBox1->AppendText("This is NOT correct.\n");
richTextBox1->Select(richTextBox1->Text->Length-13, 3);
richTextBox1->SelectionColor = System::Drawing::Color::Red;
richTextBox1->SelectionFont = gcnew System::Drawing::Font("Tahoma", 16, FontStyle::Bold);
// richTextBox1->SelectionFont = gcnew System:: Drawing:: Font(richTextBox1->Font->FontFamily, 18, FontStyle:: Regular);
richTextBox1->SelectionStart = richTextBox1->Text->Length-9;
richTextBox1->SelectionLength = 7;
richTextBox1->SelectionColor = System::Drawing::Color::Blue;
richTextBox1->SelectionFont = gcnew System:: Drawing:: Font(richTextBox1->Font->FontFamily, 12, FontStyle:: Underline);