---
title: kVTPropertySupportedValueMaximumKey
framework: videotoolbox
role: symbol
role_heading: Global Variable
path: videotoolbox/kvtpropertysupportedvaluemaximumkey
---

# kVTPropertySupportedValueMaximumKey

Dictionary key to access the maximum value of a property.

## Declaration

```swift
let kVTPropertySupportedValueMaximumKey: CFString
```

## Discussion

Discussion The associated value is a CFNumber.

## See Also

### Properties

- [kVTPropertyTypeKey](videotoolbox/kvtpropertytypekey.md)
- [Property Type Constants](videotoolbox/property-type-constants.md)
- [kVTPropertyReadWriteStatusKey](videotoolbox/kvtpropertyreadwritestatuskey.md)
- [Read/Write Status Constants](videotoolbox/read-write-status-constants.md)
- [kVTPropertyShouldBeSerializedKey](videotoolbox/kvtpropertyshouldbeserializedkey.md)
- [kVTPropertySupportedValueListKey](videotoolbox/kvtpropertysupportedvaluelistkey.md)
- [kVTPropertySupportedValueMinimumKey](videotoolbox/kvtpropertysupportedvalueminimumkey.md)
- [kVTPropertyDocumentationKey](videotoolbox/kvtpropertydocumentationkey.md)