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# canvasViewDidFinishRendering(_:)

Tells the delegate that the previously drawn content is ready to display.

```
optional func canvasViewDidFinishRendering(_ canvasView: PKCanvasView)
```

## Parameters

`canvasView`

The canvas view whose contents changed.

## Discussion

The [`PKCanvasView`](/documentation/PencilKit/PKCanvasView) object calls this method when you assign a new drawing to its [`drawing`](/documentation/PencilKit/PKCanvasView/drawing) property, when the user zooms in on the canvas, or when the canvas scrolls.

---

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