> For the complete documentation index, see [llms.txt](https://docs.wisej.com/api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wisej.com/api/wisej.web/content/canvas/wisej.web.canvascompositeoperation.md).

# CanvasCompositeOperation

Namespace: **Wisej.Web**

Assembly: **Wisej.Framework** (4.0.0.0)

Determines how a source (new) image are drawn onto a destination (existing) image.

{% tabs %}
{% tab title="C#" %}

```csharp
public enum CanvasCompositeOperation : Enum
```

{% endtab %}

{% tab title="VB.NET" %}

```visual-basic
Public Enum CanvasCompositeOperation As [Enum]
```

{% endtab %}
{% endtabs %}

## Fields

| Name                | Description                                                                                                                                                                         |
| ------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Copy**            | Displays the source image. The destination image is ignored.                                                                                                                        |
| **DestinationAtop** | Displays the destination image on top of the source image. The part of the destination image that is outside the source image is not shown.                                         |
| **DestinationIn**   | Displays the destination image in to the source image. Only the part of the destination image that is INSIDE the source image is shown, and the source image is transparent.        |
| **DestinationOut**  | Displays the destination image out of the source image. Only the part of the destination image that is OUTSIDE the source image is shown, and the source image is transparent.      |
| **DestinationOver** | Displays the destination image over the source image.                                                                                                                               |
| **Lighter**         | Displays the source image + the destination image.                                                                                                                                  |
| **SourceAtop**      | Displays the source image on top of the destination image. The part of the source image that is outside the destination image is not shown.                                         |
| **SourceIn**        | Displays the source image in to the destination image. Only the part of the source image that is INSIDE the destination image is shown, and the destination image is transparent.   |
| **SourceOut**       | Displays the source image out of the destination image. Only the part of the source image that is OUTSIDE the destination image is shown, and the destination image is transparent. |
| **SourceOver**      | Default. Displays the source image over the destination image.                                                                                                                      |
| **Xor**             | The source image is combined by using an exclusive OR with the destination image.                                                                                                   |

## Used By

| Name                                                                                         | Description                                                       |
| -------------------------------------------------------------------------------------------- | ----------------------------------------------------------------- |
| [Canvas.GlobalCompositeOperation](/api/wisej.web/content/canvas.md#globalcompositeoperation) | Sets or returns how a new image are drawn onto an existing image. |


---

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