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# OpenGL Profiles

Constants that specify the functionality provided by the renderer.

## Discussion

An OpenGL Profile is requested as part of the pixel format attributes string. When a context is created for a profile, the context must at least implement the requested version of the OpenGL specification. The context may implement a different version of the OpenGL specification as long as the version it implements is compatible with the requested version.

## Topics

### Constants

[`NSOpenGLProfileVersionLegacy`](/documentation/AppKit/NSOpenGLProfileVersionLegacy)

The requested profile is a legacy (pre-OpenGL 3.0) profile.

[`NSOpenGLProfileVersion3_2Core`](/documentation/AppKit/NSOpenGLProfileVersion3_2Core)

The requested profile must implement the OpenGL 3.2 core functionality.

[`NSOpenGLProfileVersion4_1Core`](/documentation/AppKit/NSOpenGLProfileVersion4_1Core)


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