## XmlKnownDtds enum


The [Resolvers::XmlKnownDtds](./) enumeration is used by the [Resolvers::XmlPreloadedResolver](../xmlpreloadedresolver/) and defines which well-known DTDs that the [Resolvers::XmlPreloadedResolver](../xmlpreloadedresolver/) recognizes.

```cpp
enum class XmlKnownDtds
```

### Values

| Name | Value | Description |
| --- | --- | --- |
| None | 0 | Specifies that the [Resolvers::XmlPreloadedResolver](../xmlpreloadedresolver/) will not recognize any of the predefined DTDs. |
| Xhtml10 | 1 | Specifies that the [Resolvers::XmlPreloadedResolver](../xmlpreloadedresolver/) will recognize DTDs and entities that are defined in XHTML 1.0. |
| Rss091 | 2 | Specifies that the [Resolvers::XmlPreloadedResolver](../xmlpreloadedresolver/) will recognize DTDs and entities that are defined in RSS 0.91. |
| All | 65535 | Specifies that the [Resolvers::XmlPreloadedResolver](../xmlpreloadedresolver/) will recognize all currently supported DTDs. This is the default behavior. |

## See Also

* Namespace [System::Xml::Resolvers](../)
* Library [Aspose.PDF for C++](../../)