init(cglContextObj:)
Initializes and returns an OpenGL context object using an existing CGL context.
Declaration
init?(cglContextObj context: CGLContextObj)Parameters
- context:
The CGL context to wrap inside the Nsopenglcontext object.
Return Value
An initialized context.
Discussion
If your application already has a CGL context, you can wrap a NSOpenGLContext object around it using this method. This method retains the CGL context by calling CGLRetainContext(_:).
Only one NSOpenGLContext object can wrap a specific context.
Your application should not call CGLDestroyContext(_:) to dispose of the CGL context. Instead, your application should call CGLReleaseContext(_:) to decrement its reference count.