---
title: "CVTransferFunctionGetStringForIntegerCodePoint(_:)"
framework: corevideo
role: symbol
role_heading: Function
path: "corevideo/cvtransferfunctiongetstringforintegercodepoint(_:)"
---

# CVTransferFunctionGetStringForIntegerCodePoint(_:)

Returns the Core Video transfer function string corresponding to the standard integer code point that you specify.

## Declaration

```swift
func CVTransferFunctionGetStringForIntegerCodePoint(_ transferFunctionCodePoint: Int32) -> Unmanaged<CFString>?
```

## Parameters

- `transferFunctionCodePoint`: The standard integer code point.

## Return Value

Return Value The transfer function string corresponding to the code point (See Image Buffer Transfer Function Constants for possible values.), or nil if the code point is 2 (unknown) or the system doesn’t recognize it.

## See Also

### Converting between strings and integer code points

- [CVColorPrimariesGetIntegerCodePointForString(_:)](corevideo/cvcolorprimariesgetintegercodepointforstring(_:).md)
- [CVColorPrimariesGetStringForIntegerCodePoint(_:)](corevideo/cvcolorprimariesgetstringforintegercodepoint(_:).md)
- [CVTransferFunctionGetIntegerCodePointForString(_:)](corevideo/cvtransferfunctiongetintegercodepointforstring(_:).md)
- [CVYCbCrMatrixGetIntegerCodePointForString(_:)](corevideo/cvycbcrmatrixgetintegercodepointforstring(_:).md)
- [CVYCbCrMatrixGetStringForIntegerCodePoint(_:)](corevideo/cvycbcrmatrixgetstringforintegercodepoint(_:).md)