# `GSTransformGridDataSource transformGrid:didChangeSelectedCorner:`

*Instance Method*

## Declaration

```swift
func transformGrid(_ transformGrid: GSTransformGrid!, didChangeSelectedCorner selectedCorner: GSAlignment)
```

```objc
- (void) transformGrid:(GSTransformGrid *) transformGrid didChangeSelectedCorner:(GSAlignment) selectedCorner;
```

```python
transformGrid_didChangeSelectedCorner_(transformGrid: GSTransformGrid, selectedCorner: GSAlignment)
```