---
title: QLSupportsConcurrentRequests
framework: bundleresources
role: symbol
role_heading: Property List Key
path: bundleresources/information-property-list/qlsupportsconcurrentrequests
---

# QLSupportsConcurrentRequests

A Boolean value indicating whether a Quick Look app’s  generator can handle concurrent thumbnail and preview requests.

## See Also

### QuickLook

- [QLNeedsToBeRunInMainThread](bundleresources/information-property-list/qlneedstoberuninmainthread.md)
- [QLPreviewHeight](bundleresources/information-property-list/qlpreviewheight.md)
- [QLPreviewWidth](bundleresources/information-property-list/qlpreviewwidth.md)
- [QLThumbnailMinimumSize](bundleresources/information-property-list/qlthumbnailminimumsize.md)