Invisible RocketSim window breaks SCContentSharingPicker for window sharing/recording

[renssies]

Describe the bug RocketSim seems to have an always on top invisible window. However this window is included in the SCContentSharingPicker of the ScreenCaptureKit framework. Since the window is always on top this means you can't select any other windows using this picker.

Safari is one of the apps using ScreenCaptureKit and the SCContentSharingPicker.

To Reproduce Steps to reproduce the behavior:

1. Open Safari
2. Go to any video call platform that supports screen sharing (I used Google meet)
3. Enter a meeting and share the screen
4. Safari will prompt if you want to share a screen or share a window. Choose share window
5. Try to share a window that is not RocketSim

Expected behavior For the invisible RocketSim window to not be selectable for ScreenCaptureKit. I believe setting the sharingType on an NSWindow disables it for screen sharing.

Screenshots

Desktop (please complete the following information):

• OS: macOS
• Version: 14.4.1
• Machine: Mac Mini with 1440p external dell monitor
• Processor: M2 Pro

Additional context A video of the problem. In this I try to screen share just the Bambu Studio app (green icon). https://youtu.be/S6nXj_zISVI

Workaround Hold on the green fullscreen icon of a window and choose "Share window with X"

[AvdLee]

Ouch, this is not good! Thanks for the detail report and even the coding fix that should solve this. I'll try to push this into the next build!

[AvdLee]

This will be fixed in 12.9.0