pl | ro | OnChangeBounds (TBitBtn)
pl | ro | OnClick (TBitBtn)
pl | ro | OnContextPopup (TBitBtn)
pl | ro | OnDragDrop (TBitBtn)
pl | ro | OnDragOver (TBitBtn)
pl | ro | OnEndDrag (TBitBtn)
pl | ro | OnEnter (TBitBtn)
pl | ro | OnExit (TBitBtn)
pl | ro | OnKeyDown (TBitBtn)
pl | ro | OnKeyPress (TBitBtn)
pl | ro | OnKeyUp (TBitBtn)
pl | ro | OnMouseDown (TBitBtn)
pl | ro | OnMouseEnter (TBitBtn)
pl | ro | OnMouseLeave (TBitBtn)
pl | ro | OnMouseMove (TBitBtn)
pl | ro | OnMouseUp (TBitBtn)
pl | ro | OnResize (TBitBtn)
pl | ro | OnStartDrag (TBitBtn)
pl | ro | OnUTF8KeyPress (TBitBtn)

The latest version of this document can be found at lazarus-ccr.sourceforge.net.