## BoxedValueBase::GetUnsignedLongLongValue method


将当前对象表示的装箱值转换为 64 位整数。

```cpp
virtual uint64_t System::BoxedValueBase::GetUnsignedLongLongValue() const =0
```


### ReturnValue

与当前对象表示的装箱值等价的 64 位整数值

## 另见

* Class [BoxedValueBase](../)
* Namespace [System](../../)
* Library [Aspose.Font for C++](../../../)