---
title: Result Codes
framework: corevideo
role: collectionGroup
role_heading: API Collection
path: corevideo/result-codes
---

# Result Codes

Describes the result codes generated by Core Video operations.

## Topics

### Common

- [kCVReturnAllocationFailed](corevideo/kcvreturnallocationfailed.md)
- [kCVReturnError](corevideo/kcvreturnerror.md)
- [kCVReturnInvalidArgument](corevideo/kcvreturninvalidargument.md)
- [kCVReturnSuccess](corevideo/kcvreturnsuccess.md)
- [kCVReturnUnsupported](corevideo/kcvreturnunsupported.md)
- [kCVReturnLast](corevideo/kcvreturnlast.md)
- [kCVReturnFirst](corevideo/kcvreturnfirst.md)

### Pixel Buffer

- [kCVReturnInvalidPixelBufferAttributes](corevideo/kcvreturninvalidpixelbufferattributes.md)
- [kCVReturnInvalidPixelFormat](corevideo/kcvreturninvalidpixelformat.md)
- [kCVReturnInvalidSize](corevideo/kcvreturninvalidsize.md)
- [kCVReturnPixelBufferNotMetalCompatible](corevideo/kcvreturnpixelbuffernotmetalcompatible.md)
- [kCVReturnPixelBufferNotOpenGLCompatible](corevideo/kcvreturnpixelbuffernotopenglcompatible.md)

### Buffer Pool

- [kCVReturnRetry](corevideo/kcvreturnretry.md)
- [kCVReturnInvalidPoolAttributes](corevideo/kcvreturninvalidpoolattributes.md)
- [kCVReturnPoolAllocationFailed](corevideo/kcvreturnpoolallocationfailed.md)
- [kCVReturnWouldExceedAllocationThreshold](corevideo/kcvreturnwouldexceedallocationthreshold.md)

### Display Link

- [kCVReturnInvalidDisplay](corevideo/kcvreturninvaliddisplay.md)
- [kCVReturnDisplayLinkAlreadyRunning](corevideo/kcvreturndisplaylinkalreadyrunning.md)
- [kCVReturnDisplayLinkNotRunning](corevideo/kcvreturndisplaylinknotrunning.md)
- [kCVReturnDisplayLinkCallbacksNotSet](corevideo/kcvreturndisplaylinkcallbacksnotset.md)

## See Also

### Core Video Error Constants

- [Data Types](corevideo/data-types.md)
- [CVError](corevideo/cverror.md)