Function Class

Although PDF is not a programming language it provides several types of function object that represent parameterized classes of functions, including mathematical formulas and sampled representations with arbitrary resolution. Functions are used in various ways in PDF, including device-dependent rasterization information for high-quality printing (halftone spot functions and transfer functions), color transform functions for certain color spaces, and specification of colors as a function of position for smooth shadings. Functions in PDF represent static, self-contained numerical transformations. PDF::Function represents a single, flat interface around all PDF function types.

public sealed class Function : IClosable

Public NotInheritable Class Function
	Implements IClosable

public ref class Function sealed : IClosable

pdftron.PDF.Function = function();

Type.createClass(
	'pdftron.PDF.Function',
	null,
	Windows.Foundation.IClosable);