# IPCB_LettersCache interface

*No description yet.*

```csharp
public interface IPCB_LettersCache
```

**Namespace:** PCB · **Assembly:** Altium.SDK.Interfaces

This interface declares no members of its own.

## Returned by

[IPCB_ServerInterface.TTFLettersCache](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_ServerInterface.md#ttfletterscache)