---
title: Adding parameters to plug-ins
framework: professional-video-applications
role: article
path: professional-video-applications/adding-parameters-to-plug-ins
---

# Adding parameters to plug-ins

## Adding parameters to plug-ins

Adding parameters to plug-ins Create standard and custom user-facing parameters for your plug-in that will appear in the inspector.

Overview

Once a plug-in is invoked by a host application, the host application asks for the plug-in’s parameter list by calling the [addParameters()](/documentation/professional_video_applications/fxtileableeffect/addparameters()) method. This method is declared in the `FxBaseEffect` protocol, which is inherited by the [FxTileableEffect](/documentation/professional_video_applications/fxtileableeffect) protocol. The host application then displays the parameters in its inspector.