API Question Advanced camera APIs

[rstarkov]

I'd like to have full control of the external camera for an addon I'm starting to work on.

None of the documented APIs are powerful enough, however I've found a whole bunch of relevant exports in the headers. Among them are:

• class ExternalCameraControl
• function oapiRegisterExternalCameraControl
• function oapiUnregisterExternalCameraControl
• class CameraMode
• class CameraMode_Cockpit
• class CameraMode_Track
• class CameraMode_Ground

I've tried using them in several ways but couldn't make them have any effect. Has anyone used these successfully?