private void richTextBox1_TextChanged(object sender, EventArgs e)
{
T.Text = richTextBox1.Text;
int i = 0;
bool ok = true;
string S = T.Text;
ST.Rtf = richTextBox1.Rtf;
int o = richTextBox1.SelectionStart;
int lg = richTextBox1.SelectionLength;
ST.SelectionColor = Color.Black;
ST.Select(i, richTextBox1.Text.Length - i);
ST.SelectionColor = Color.Black;
while (i < S.Length)
{
if (ok)
{
if (T.GetSpellingErrorStart(i) >= 0)
{
int l = S.IndexOf(' ', i + 1);
if (l < 0)
{
l = S.Length;
}
l = l - i;
ST.Select(i, l);
string st = ST.SelectedText.ToLower();
ST.SelectionColor = Color.Red;
ST.SelectionLength = 0;
ST.SelectionColor = Color.Black;
}
else
{
int l = S.IndexOf(' ', i + 1);
if (l < 0)
{
l = S.Length;
}
l = l - i;
}
ok = false;
}
if (S[i] == ' ')
{
ok = true;
}
i++;
}
richTextBox1.Rtf = ST.Rtf;
richTextBox1.SelectionColor = Color.Black;
richTextBox1.SelectionStart = o;
richTextBox1.SelectionLength = lg;
richTextBox1.SelectionColor = Color.Black;
ltext = T.Text;
}