---
title: IKFilterBrowserWillPreviewFilterNotification
framework: quartz
role: symbol
role_heading: Global Variable
path: quartz/ikfilterbrowserwillpreviewfilternotification
---

# IKFilterBrowserWillPreviewFilterNotification

Posted before showing a filter preview, allowing an application to set the parameters of a filter.

## Declaration

```occ
extern NSString * const IKFilterBrowserWillPreviewFilterNotification;
```

## Discussion

Discussion The selected filter is sent as the object in the notification.

## See Also

### Notifications

- [IKFilterBrowserFilterSelectedNotification](quartz/ikfilterbrowserfilterselectednotification.md)
- [IKFilterBrowserFilterDoubleClickNotification](quartz/ikfilterbrowserfilterdoubleclicknotification.md)