CGPointx
CGPointx is a term that appears to be a misspelling or a non-standard representation of CGPoint, a fundamental data structure in Apple's Cocoa and Cocoa Touch frameworks. CGPoint is a structure used to represent a point in a two-dimensional coordinate system. It is defined in the Core Graphics framework and is commonly used for specifying locations, sizes, and origins of objects within the graphical user interface.
A CGPoint structure consists of two floating-point variables, typically named x and y, representing the horizontal
When discussing CGPointx, it's highly probable that the intended reference is to the x-coordinate of a CGPoint.