C#. Event handlers gets garbage collected while capturing still on, leading to crash about screen_capture_lite HOT 1 CLOSED

I googled and tinker around a bit. Consider this code from MonitorCaptureConfiguration.cs :

Lets see using dnSpy what it translated to after compilation:

This new ScreenCaptureCallbackWithContext(MonitorCaptureConfiguration.OnNewFrame) is successfully passed to unmanaged library but it's, as i assumed in OP, indeed used nowhere else and held by no one in managed code and thus can be GC'ed while some unmanaged code still use it. So this object needs to be placed in field or something, that's what i did in PR #157

from screen_capture_lite.