---
title: NSBitmapImageRep.LoadStatus.readingHeader
framework: appkit
role: symbol
role_heading: Case
path: appkit/nsbitmapimagerep/loadstatus/readingheader
---

# NSBitmapImageRep.LoadStatus.readingHeader

The image format is known, but not enough data has been read to determine the size, depth, etc., of the image. You should continue to provide more data.

## Declaration

```swift
case readingHeader
```

## See Also

### Constants

- [NSBitmapImageRep.LoadStatus.unknownType](appkit/nsbitmapimagerep/loadstatus/unknowntype.md)
- [NSBitmapImageRep.LoadStatus.willNeedAllData](appkit/nsbitmapimagerep/loadstatus/willneedalldata.md)
- [NSBitmapImageRep.LoadStatus.invalidData](appkit/nsbitmapimagerep/loadstatus/invaliddata.md)
- [NSBitmapImageRep.LoadStatus.unexpectedEOF](appkit/nsbitmapimagerep/loadstatus/unexpectedeof.md)
- [NSBitmapImageRep.LoadStatus.completed](appkit/nsbitmapimagerep/loadstatus/completed.md)