Function gvr_sys::gvr_controller_state_get_battery_level

pub unsafe extern "C" fn gvr_controller_state_get_battery_level(
    state: *const gvr_controller_state
) -> i32

Returns the bucketed controller battery level at the last update. Note this is a gvr_controller_battery_level and not a percent. The last battery update time is available by calling gvr_controller_state_get_battery_timestamp.

@param state The controller state to get the battery level from. @return The last known battery level as a gvr_controller_battery_level variant.