# `GSCompositingOperation.GSCompositingOperationSource`

*Type Property*

`COMPOSITE_SRC`             `kCGBlendModeCopy`             `NSCompositingOperationCopy`

## Declaration

```swift
static let source: GSCompositingOperation
```

```objc
extern GSCompositingOperation const GSCompositingOperationSource;
```

```python
GSCompositingOperationSource: GSCompositingOperation
```