CGContextRef

CGContextRef is a data type in the Core Graphics framework of Apple's iOS and macOS operating systems. It represents a graphics context, which is an object that encapsulates drawing parameters and drawing environment. The context is used to draw graphics, text, and images onto a surface, such as a view or a bitmap. CGContextRef is a reference to a Core Graphics context, which is used to perform drawing operations in a graphics context. It is a low-level API that provides fine-grained control over the drawing process. CGContextRef is used in conjunction with other Core Graphics data types, such as CGPathRef and CGImageRef, to create complex graphics and visual effects. It is also used in conjunction with other frameworks, such as UIKit and AppKit, to create user interfaces and visual elements. CGContextRef is a powerful and flexible tool for creating custom graphics and visual effects in iOS and macOS applications.