There is a way to shut batch processes down without a user interface but its a bit old school.

Simply have the program check for the existance of a file , if the file exists then shut down , otherwise continue. or the other way around .   You can get it to read a file and get parameters passed in that way , like a file list to load and render , but a file exists test is pretty simple to imlement.

That wont get you an abort of the process though , it will give you a stop at the beginning of a loop though .