I have a shell command that I am running in a RealBasic App, and until now I've just been reading the output, but it requires user input. Is there something I could use to embed something like a terminal or a console application that could run a command, show the output, and take the input, maybe in a widget looking like a text area, like many IDEs and code editors have?
There is no pre-built control in RealStudio to accomplish this. However it's trivial to implement with a TextArea control and a Shell object set to Mode=2.
An example of this is included in the RealStudio Examples directory in your RealStudio install directory (by default on Windows, C:\Program Files\REAL Software\Real Studio\Examples\Shell\Interactive Shell.rbp.)