RichTextBox C # Text Block Selection

Question

Has anyone extended the RichBextBox .NET control to be able to select text using "block select"? If so, feel free to share your code?

Answer 1

As far as I know, the only way to do this is using SendMessage from the API using EM_CHARFROMPOS .

You will need to do some sort of rectangular border search / tracking and experiment to find an effective solution, but that would be fundamental.