# LV2 Data Access

Provides access to plugin extension data.

ID | http://lv2plug.in/ns/ext/data-access
Version | 1.6
Date | 2020-04-26
Discuss | devel@lists.lv2plug.in (subscribe)

- Index
- History
- API

This extension defines a feature, LV2_Extension_Data_Feature, which provides access to LV2_Descriptor::extension_data() for plugin UIs or other potentially remote users of a plugin.

Note that the use of this extension by UIs violates the important principle of UI/plugin separation, and is potentially a source of many problems. Accordingly, use of this extension is highly discouraged, and plugins should not expect hosts to support it, since it is often impossible to do so.

To support this feature the host must pass an LV2_Feature struct to LV2_Descriptor::extension_data() with URI LV2_DATA_ACCESS_URI and data pointed to an instance of LV2_Extension_Data_Feature.

## Index

## History

Version 1.6 (2012-04-17)
  - Merge with unified LV2 package.
Version 1.4 (2011-11-21)
  - Update packaging.
  - Improve documentation.
Version 1.2 (2011-05-26)
  - Add build system for installation.
  - Switch to ISC license.
Version 1.0 (2010-10-04)
  - Initial release.