Here are the data structures with brief descriptions:

CSBK_BarDrive	Unified interface combining SBK_BarMeter logic with optional built-in animation support
CSBK_BarMeter	Template class for controlling segment-based LED bar meters using row/column mappings
CSBK_BarMeterAnimations	Templated animation controller for SBK_BarMeter<T>
CQueueEntry
CBlock