Callback Far pointer to CALLBACK function lpfnAbort的用法和样例：
例句
- The probability of the failure depends on the time between marshaling the delegate and the callback on the function pointer as well as the frequency of garbage collections.
该故障发生的可能性取决于从封送委托到对函数指针发出回调之间的时间以及垃圾回收的频率。 - So, your class has two constructors, one with a function pointer and the other without it.
所以你的类将有两个构造器，一个有函数指针，另一个没有。
