---
title: HFSCatalogKey
framework: Kernel
role: symbol
role_heading: Structure
platforms: [macOS 10.6+]
path: kernel/hfscatalogkey
---

# HFSCatalogKey

## Declaration

```occ
typedef struct HFSCatalogKey {
    ...
} HFSCatalogKey;
```

## Topics

### Instance Properties

- [keyLength](kernel/hfscatalogkey/1578207-keylength.md)
- [nodeName](kernel/hfscatalogkey/1578035-nodename.md)
- [parentID](kernel/hfscatalogkey/1578059-parentid.md)
- [reserved](kernel/hfscatalogkey/1578200-reserved.md)

## See Also

### Format

- [HFSCatalogFile](kernel/hfscatalogfile.md)
- [HFSCatalogFolder](kernel/hfscatalogfolder.md)
- [HFSCatalogThread](kernel/hfscatalogthread.md)
- [HFSExtentDescriptor](kernel/hfsextentdescriptor.md)
- [HFSExtentKey](kernel/hfsextentkey.md)
- [HFSMasterDirectoryBlock](kernel/hfsmasterdirectoryblock.md)
- [HFSPlusAttrData](kernel/hfsplusattrdata.md)
- [HFSPlusAttrExtents](kernel/hfsplusattrextents.md)
- [HFSPlusAttrForkData](kernel/hfsplusattrforkdata.md)
- [HFSPlusAttrInlineData](kernel/hfsplusattrinlinedata.md)
- [HFSPlusAttrKey](kernel/hfsplusattrkey.md)
- [HFSPlusBSDInfo](kernel/hfsplusbsdinfo.md)
- [HFSPlusCatalogFile](kernel/hfspluscatalogfile.md)
- [HFSPlusCatalogFolder](kernel/hfspluscatalogfolder.md)
- [HFSPlusCatalogKey](kernel/hfspluscatalogkey.md)
- [HFSPlusCatalogThread](kernel/hfspluscatalogthread.md)
- [HFSPlusExtentDescriptor](kernel/hfsplusextentdescriptor.md)
- [HFSPlusExtentKey](kernel/hfsplusextentkey.md)
- [HFSPlusForkData](kernel/hfsplusforkdata.md)
- [HFSPlusVolumeHeader](kernel/hfsplusvolumeheader.md)
- [HFSUniStr255](kernel/hfsunistr255.md)