# Box2D/Box2D/Dynamics/b2WorldCallbacks.h File Reference

`#include <Box2D/Common/b2Settings.h>`

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## Classes
class | b2DestructionListener
class | b2ContactFilter
struct | b2ContactImpulse
class | b2ContactListener
class | b2QueryCallback
class | b2RayCastCallback
struct | b2Color
| Color for debug drawing. Each value has the range [0,1]. More...
class | b2DebugDraw