---
title: kFxParameterFlag_CUSTOM_UI
framework: Professional Video Applications
role: symbol
role_heading: Global Variable
platforms: [fxplug 3.1+]
path: professional_video_applications/kfxparameterflag_custom_ui
---

# kFxParameterFlag_CUSTOM_UI

This parameter uses a custom user interface that replaces the standard parameter UI.

## Declaration

```swift
var kFxParameterFlag_CUSTOM_UI: Int { get }
```

## Discussion

Discussion The plug-in must provide a custom view for this parameter. See FXCustomParameterActionAPI and FxCustomParameterViewHost.

## See Also

### Constants

- [kFxParameterFlag_COLLAPSED](professional_video_applications/kfxparameterflag_collapsed.md)
- [kFxParameterFlag_CURVE_EDITOR_HIDDEN](professional_video_applications/kfxparameterflag_curve_editor_hidden.md)
- [kFxParameterFlag_DEFAULT](professional_video_applications/kfxparameterflag_default.md)
- [kFxParameterFlag_DISABLED](professional_video_applications/kfxparameterflag_disabled.md)
- [kFxParameterFlag_DONT_DISPLAY_IN_DASHBOARD](professional_video_applications/kfxparameterflag_dont_display_in_dashboard.md)
- [kFxParameterFlag_DONT_SAVE](professional_video_applications/kfxparameterflag_dont_save.md)
- [kFxParameterFlag_HIDDEN](professional_video_applications/kfxparameterflag_hidden.md)
- [kFxParameterFlag_IGNORE_MINMAX](professional_video_applications/kfxparameterflag_ignore_minmax.md)
- [kFxParameterFlag_NOT_ANIMATABLE](professional_video_applications/kfxparameterflag_not_animatable.md)
- [kFxParameterFlag_DONT_REMAP_COLORS](professional_video_applications/kfxparameterflag_dont_remap_colors.md)
- [kFxParameterFlag_USE_FULL_VIEW_WIDTH](professional_video_applications/kfxparameterflag_use_full_view_width.md)