## FontSourceBase class


This is an abstract base class for the classes that allow the user to specify various font sources.

```cpp
class FontSourceBase
```

## Methods

| Method | Description |
| --- | --- |
| [FontSourceBase(FontSourceBase_Impl* impl)](./fontsourcebase/) | Constructs from an implementation object. |
| [FontSourceBase(const FontSourceBase\& src)](./fontsourcebase/) | Copy constructor. |
| virtual [GetType()](./gettype/) | Returns the type of the font source. |
| [IsNull()](./isnull/) const | Checks whether the implementation object is nullptr. |
| explicit [operator bool()](./operator_bool/) const | operator bool() |
| [operator=(const FontSourceBase\& src)](./operator_asm/) | operator= |
| [~FontSourceBase()](./~fontsourcebase/) | Destructor. |
## Fields

| Field | Description |
| --- | --- |
| [_impl](./_impl/) | The implementation object. |
## See Also

* Namespace [Aspose::Cells](../)
* Library [Aspose.Cells for C++](../../)