Matt Sephton

Hi, better late than never. Here are my thumbnail debugging notes: Debugging macOS QuickLook thumbnails macOS aggressively caches two things: the rendered thumbnails and the extension binary itself. After a rebuild you usually need a full reset —qlmanage -r alone is rarely enough. APPDIR="/Applications/YourApp.app" # wherever the built .app actually lives Note: make sure you don't have old versions of apps/binaries hanging around. One only at all times! 1. Re-register with LaunchServices (refreshes...

Hi, better late than never. Here are my thumbnail debugging notes: Debugging macOS QuickLook thumbnails macOS aggressively caches two things: the rendered thumbnails and the extension binary itself. After a rebuild you usually need a full reset —qlmanage -r alone is rarely enough. APPDIR="/Applications/YourApp.app" # wherever the built .app actually lives Note: make sure you don't have old versions of apps/binaries hanging around. One only at all times! 1. Re-register with LaunchServices (refreshes...

Hi, better late than never. Here are my thumbnail debugging notes: Debugging macOS QuickLook thumbnails macOS aggressively caches two things: the rendered thumbnails and the extension binary itself. After a rebuild you usually need a full reset —qlmanage -r alone is rarely enough. APPDIR="/Applications/YourApp.app" # wherever the built .app actually lives 1. Re-register with LaunchServices (refreshes UTType declarations) /System/Library/Frameworks/CoreServices.framework/Versions/Current/Frameworks/LaunchServices.framework/Versions/Current/Support/lsregister...

Hi, better late than never. Here are my thumbnail debugging notes: Debugging macOS QuickLook thumbnails macOS aggressively caches two things: the rendered thumbnails and the extension binary itself. After a rebuild you usually need a full reset —qlmanage -r alone is rarely enough. APPDIR="/Applications/YourApp.app" # wherever the built .app actually lives 1. Re-register with LaunchServices (refreshes UTType declarations) /System/Library/Frameworks/CoreServices.framework/Versions/Current/Frameworks/LaunchServices.framework/Versions/Current/Support/lsregister...

i have it in two of my closed source apps. i will see how i can share with you

No, sorry, I only hve Apple silicon M1

Right! App + Thumbnail target + QuickLook Preview target. The code would be Shared and accessed by all.

Right! App + Thunbnail target + QuickLook Preview target. The code would be Shared and accessed by all.