It seems that `HOOKPROC` specifies the calling conversion, so closures cannot be used here. But I don't see how `self` is used in the callback, therefore you could just remove it from the parameter list. Otherwise (if it cannot be removed) you should follow @mashingan's suggestion.
- Undeclared field - Unrecognized proc Oecophylla
- Undeclared field - Unrecognized proc SolitudeSF
- Undeclared field - Unrecognized proc sls1005
- Undeclared field - Unrecognized proc Oecophylla
- Undeclared field - Unrecognized proc mashingan
- Undeclared field - Unrecognized proc sls1005
