callbackpointer
nounUK /ˈkɔːlbæk ˌpɔɪntə/
US /ˈkɔːlbæk ˌpɔɪntər/
A callback pointer is a little note in a computer that tells it which helper to run next.
The program stored a callback pointer so it knew which function to call when the button was clicked.
RELATED WORDS
OTHER MEANINGS
2. In event-driven programming, a stored address used to invoke a listener when something happens.
The timer kept a callback pointer to the alarm routine.
3. A reference passed to a library so the library can call back into your code later.
We gave the sorting library a callback pointer for comparing items.
4. A memory address that points to executable code meant to be run on completion of a task.
After the download finished, the callback pointer triggered the success message.