# `GSTextStorage rangeOfComposedCharacterSequenceAtIndex:`

*Instance Method*

## Declaration

```swift
func rangeOfComposedCharacterSequence(at idx: UInt) -> NSRange
```

```objc
- (NSRange) rangeOfComposedCharacterSequenceAtIndex:(NSUInteger) idx;
```

```python
rangeOfComposedCharacterSequenceAtIndex_(idx: int) -> NSRange
```