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The process for receiving a value through a callback function typically involves the following steps:

1. The caller function defines a callback function and passes it as an argument to the callee function.
2. The callee function executes and performs its tasks.
3. Once the callee function has completed its tasks, it calls the callback function that was passed to it as an argument.
4. The callback function executes, receives the value(s) that were sent by the callee function, and performs any necessary processing.
5. The callback function may then return a value to the caller function.

Overall, the key to receiving a value through a callback function is to ensure that the callback function is correctly defined and passed as an argument to the callee function, and that it is properly executed and processed once it is called by the callee function.