Displaying tooltip on mouse hover of a text

Question

I want to display a tooltip when the mouse hovers over a link in my custom rich edit control. Consider the following text:

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Answer 1

If you are using RichTextBox control. You can simply define the ToolTip object and show the tool-tip as the text is selected by moving the mouse inside the RichTextBox control.

    ToolTip m_ttInput = new ToolTip(); // define as member variable

    private void rtbInput_SelectionChanged(object sender, EventArgs e)
    {
        if (rtbInput.SelectedText.Length > 0) 
        {
            m_ttInput.Show(rtbInput.SelectedText.Length.ToString(), rtbInput, 1000);
        }
    }