Question

I have a rich text box which is enabled to CTRL + > (or CTRL + <) key shortcut which increases(or decreases) font size. I want to disable the key so that it will not change the font sizes. Is there any way to do this?

Answer 1

Try capturing KeyDown event like this:

    private void richTextBox1_KeyDown(object sender, KeyEventArgs e)
    {
        if ((e.KeyValue == 190 || e.KeyValue == 188) && e.Control && e.Shift)
        {
            e.Handled = true;
        }
    }