Function ovr_GetTrackingOriginType 

pub unsafe extern "C" fn ovr_GetTrackingOriginType(
    session: ovrSession,
) -> ovrTrackingOrigin

Gets the tracking origin state

session Specifies an ovrSession previously returned by ovr_Create.

Returns the ovrTrackingOrigin that was either set by default, or previous set by the application.

see ovrTrackingOrigin, ovr_SetTrackingOriginType