# Internal Fonts: Overview

## Description

Three font sizes are embedded in the TWL system memory. The internal font API is used to load internal fonts into memory. The TWL-SDK does not provide an API for drawing characters using the loaded fonts.

The internal fonts are in the NITRO Font (NFTR) format described in TWL-System. You can use TWL-System to draw characters with the loaded fonts. See the TWL-System documents for details on NITRO fonts (NFTR), and TWL Bitmap Font for information specific to internal fonts.

Internal fonts can only be used by NAND applications.

## Sample Demos

The NAND application sample demo `sharedFont` loads internal fonts using the internal font API.

The `sharedFont` demo is in the `$TwlSDK/build/demos.TWL/nandApp/sharedFont` folder.

## See Also

NA Function List (Internal Fonts), NAND Application Sample Demos, TWL Bitmap Font

## Revision History

2008/09/16 Initial version.

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