How to make code execution on a key?

Question

C++ / C#

Let's say I have a code that should be executed when I press a key, for example MOUSE4.
Eg: I started the program, and in order to start the selection (eg) I have to press F5.
How can this be implemented?
Similar to the one in the AHK binder

Answer 1

If I understand the question correctly, then this answer will suffice:
How to call a function in C# on click with the hot key pressed?
Well, use the key codes you need, here is a list for you:
https://msdn.microsoft.com/en-us/library/aa243025(...