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Called when the tree-lines need to be drawn.
protected virtual void OnRenderTreeLines(DrawingContext drawingContext, Rect backgroundArea)
Protected Overridable Sub OnRenderTreeLines(drawingContext As DrawingContext, backgroundArea As Rect)
| Type | Name | Description |
|---|---|---|
| DrawingContext | drawingContext | The drawing context used to paint the background. |
| Rect | backgroundArea | The rectangle of the background. |