Why does selecting text in a Command Prompt hang the running application?

Question

We have an application that outputs logging info to stdout. However, if it is run in a command prompt window, you can use Mark to select text from the console. If you leave the text selected, the application just hangs and doesn't proceed, until you deselect the text (for example by pressing Enter to copy the selection into the clipboard). After that, the application continues normally. So it acts just like a breakpoint.

Can this behaviour of the command prompt be disabled somehow?

Answer 1

This is a "feature" of the command prompt. I've never found a way to disable it. You can hit ESC to cancel the selection and allow the process to resume.