A programming library for writing Add-ons. Generally, PDK add-ons are PHost specific, but a few ones also work for the original host.

The PDK is licensed under the GPL, hence it comes with source. Because of this, PDK add-ons are generally quite portable.

This is a testing version.
It may be incomplete, and have more bugs (or features) than the public live version at planetscentral.com.