---
title: "NSMidX(_:)"
framework: foundation
role: symbol
role_heading: Function
path: "foundation/nsmidx(_:)"
---

# NSMidX(_:)

Returns the x coordinate of a given rectangle’s midpoint.

## Declaration

```swift
func NSMidX(_ aRect: NSRect) -> Double
```

## Return Value

Return Value Returns the x coordinate of the center of aRect.

## See Also

### Managing Rectangles

- [NSContainsRect(_:_:)](foundation/nscontainsrect(_:_:).md)
- [NSDivideRect(_:_:_:_:_:)](foundation/nsdividerect(_:_:_:_:_:).md)
- [NSEqualRects(_:_:)](foundation/nsequalrects(_:_:).md)
- [NSIsEmptyRect(_:)](foundation/nsisemptyrect(_:).md)
- [NSHeight(_:)](foundation/nsheight(_:).md)
- [NSInsetRect(_:_:_:)](foundation/nsinsetrect(_:_:_:).md)
- [NSIntegralRect(_:)](foundation/nsintegralrect(_:).md)
- [NSIntegralRectWithOptions(_:_:)](foundation/nsintegralrectwithoptions(_:_:).md)
- [NSIntersectionRect(_:_:)](foundation/nsintersectionrect(_:_:).md)
- [NSIntersectsRect(_:_:)](foundation/nsintersectsrect(_:_:).md)
- [NSMakeRect(_:_:_:_:)](foundation/nsmakerect(_:_:_:_:).md)
- [NSMaxX(_:)](foundation/nsmaxx(_:).md)
- [NSMaxY(_:)](foundation/nsmaxy(_:).md)
- [NSMidY(_:)](foundation/nsmidy(_:).md)
- [NSMinX(_:)](foundation/nsminx(_:).md)