---
title: Preload flags
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/track_load_settings_atom/preload_flags
---

# Preload flags

A 32-bit integer containing flags governing the preload operation.

## Overview

Overview Only two flags are defined, and they are mutually exclusive. If this flag is set to 1, the track is to be preloaded regardless of whether it is enabled. If this flag is set to 2, the track is to be preloaded only if it is enabled.

## See Also

### Data fields

- [Size](quicktime-file-format/track_load_settings_atom/size.md)
- [Type](quicktime-file-format/track_load_settings_atom/type.md)
- [Preload start time](quicktime-file-format/track_load_settings_atom/preload_start_time.md)
- [Preload duration](quicktime-file-format/track_load_settings_atom/preload_duration.md)
- [Default hints](quicktime-file-format/track_load_settings_atom/default_hints.md)