How to get the current line in a RichTextBox control?

Question

Say I clicked somewhere inside a RichTextBox control. How can I get the current line the caret is currently on?

Btw this is to retrieve the whole text string of that line.

Answer 1

One way is to send it the EM_LINEFROMCHAR Message. I'm sure there are other ways.

Answer 2

That's what RichTextBox.GetLineFromCharIndex() does. Pass the SelectionStart property value.