---
title: Component type
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/handler_reference_atom/component_type
---

# Component type

A four-character code that identifies the type of the handler.

## Overview

Overview Only two values are valid for this field: 'mhlr' for media handlers and 'dhlr' for data handlers.

## See Also

### Data fields

- [Size](quicktime-file-format/handler_reference_atom/size.md)
- [Type](quicktime-file-format/handler_reference_atom/type.md)
- [Version](quicktime-file-format/handler_reference_atom/version.md)
- [Flags](quicktime-file-format/handler_reference_atom/flags.md)
- [Component subtype](quicktime-file-format/handler_reference_atom/component_subtype.md)
- [Component manufacturer](quicktime-file-format/handler_reference_atom/component_manufacturer.md)
- [Component flags](quicktime-file-format/handler_reference_atom/component_flags.md)
- [Component flags mask](quicktime-file-format/handler_reference_atom/component_flags_mask.md)
- [Component name](quicktime-file-format/handler_reference_atom/component_name.md)