`TBCSVGButton`
pl		OnPositionChange

`TBCSVGViewer`
pl	ro	OnRedraw
pl	ro	OnClick
pl	ro	OnDblClick
pl	ro	OnMouseDown
pl	ro	OnMouseEnter
pl	ro	OnMouseLeave
pl	ro	OnMouseMove
pl	ro	OnMouseUp
pl	ro	OnPaint
pl	ro	OnResize

`TCustomBGRAGraphicControl`
		OnRedraw

`TBGRAGraphicCtrl`