What are the ways to impement callback in C++

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C++

Hi,

Imagine I have some networking class CNetwork which has some method called: makeNetworkRequest(int requestCode). The response from makeNetworkRequest(int requestCode) can of course come some time later this function was called. What I want is that, when that response arrives, to execute such code for example:

void myApp::function1()
{
CMyButton button;
button.SetText(responseFromServer.text);
button.SetTextColor(responseFromServer.color);
}

The thing I want now is that the user from UI may be calling makeNetworkRequest with different request codes -- and based on that I may want to execute different functionality, e.g., for example execute function2 instead of function1 -- and I want to be able to achieve the functionality I mentioned above.

void myApp::function2()
{
CMyEdit edit;
edit.SetText(responseFromServer.text);
}