How to change the default behavior of the [TAB] key while calling an application from the shell?

Question

The default behavior for the [TAB] key in the shell is to automatically auto-complete or list the files in the current directory. How to override this behavior in the shell for some chosen applications?

Edit: This is not related to the application that is being used, rather, it's the shell environment that needs to be customized! (Thanks to Anders Abel for clearing this point)

Answer 1

If you want to change the behaviour when creating the command line for starting the program, that's impossible from within the program. At that point your program is not yet started, so it's entirely up to the shell how to interpret [TAB] at that point.

Once your program is running you can of course handle [TAB] in whatever way you want, by using an appropriate API call.