Hello.
In software development there is the concept of a "hook." A hook is a feature in a computer program that permits a second program to gain control of some feature in the first program.
For example, suppose that a software company has written a program that keeps track of customer information for a business. At some point in the normal operation of the program, the user inputs customer information and causes the program to save that information. Suppose further that the makers of the program have written it such that there is a way for you to specify your own program to be called at the moment that the user saves their data. (Perhaps this is so that you can write a program that peforms custom verification of the data and disallows the save if the data is in an improper form.) Such a feature is called a "hook."
Another way to say it is that a hook allows your program to insert its own functionality at a specified point in the processing of another program, possibly affecting the outcome of that processing. To cause your program to use the hook is "to hook" the other program. For example, as a programmer, I can say that I'm going to write a program that hooks the save feature of the above customer-information program.
Does anyone have thoughts on a good Russian word or phrase to use for this concept (both noun and verb)?
P.S. I'm sorry for all the English. My vocabulary and grammar aren't up to posing this question in Russian.
Thank you.