Index - B
| backwardSub | Reflex.SDL2 |
| backwardSubFinite | Reflex.SDL2 |
| ballDelta | Reflex.SDL2 |
| basis | Reflex.SDL2 |
| basisFor | Reflex.SDL2 |
| Battery | Reflex.SDL2 |
| BatteryState | Reflex.SDL2 |
| BGR24 | Reflex.SDL2 |
| BGR555 | Reflex.SDL2 |
| BGR565 | Reflex.SDL2 |
| BGR888 | Reflex.SDL2 |
| BGRA4444 | Reflex.SDL2 |
| BGRA5551 | Reflex.SDL2 |
| BGRA8888 | Reflex.SDL2 |
| BGRX8888 | Reflex.SDL2 |
| BlendAdditive | Reflex.SDL2 |
| BlendAlphaBlend | Reflex.SDL2 |
| BlendMod | Reflex.SDL2 |
| BlendMode | Reflex.SDL2 |
| BlendNone | Reflex.SDL2 |
| ButtonExtra | Reflex.SDL2 |
| ButtonLeft | Reflex.SDL2 |
| ButtonMiddle | Reflex.SDL2 |
| buttonPressed | Reflex.SDL2 |
| ButtonRight | Reflex.SDL2 |
| ButtonX1 | Reflex.SDL2 |
| ButtonX2 | Reflex.SDL2 |