iOS8:Framework:Core Graphics Framework:Functions

iOS8 Framework

Bitmap Context

• Creating Bitmap Contexts
• Getting Information About Bitmap Contexts

Color

• Retaining and Releasing Color Objects
• Creating Quartz Colors
• Getting Information about Quartz Colors

Color Space

• Creating Device-Independent Color Spaces
• Creating Generic or Device-Dependent Color Spaces
• Creating Special Color Spaces
• Getting Information About Color Spaces
• Retaining and Releasing Color Spaces

Context

• Managing Graphics Contexts
• Saving and Restoring the Current Graphics State
• Getting and Setting Graphics State Parameters
• Constructing Paths
• Painting Paths
• Getting Information About Paths
• Modifying Clipping Paths
• Setting Color, Color Space, and Shadow Values
• Transforming User Space
• Using Transparency Layers
• Drawing an Image to a Graphics Context
• Drawing PDF Content to a Graphics Context
• Drawing With a Gradient
• Drawing With a Shading
• Setting Up a Page-Based Graphics Context
• Drawing Glyphs
• Drawing Text
• Converting Between Device Space and User Space

Data Consumer

• Creating Data Consumers
• Getting the CFType ID
• Retaining and Releasing Data Consumers

Data Provider

• CGDataProvider Miscellaneous Functions

Font

• Retaining and Releasing a CGFont Object
• Creating a CGFont Object
• Working With PostScript Fonts
• Working With Font Tables
• Getting Font Information

Function

• Creating a CGFunction Object
• Retaining and Releasing CGFunction Objects
• Getting the CFType ID

Gradient

• Creating a CGGradient Object
• Retaining and Releasing a CGGradient Object
• Getting the Type ID for a CGGradient Object

Image

• Creating Bitmap Images
• Creating an Image Mask
• Retaining and Releasing Images
• Getting the CFType ID
• Getting Information About an Image

Layer

• Creating Layer Objects
• Drawing Layer Content
• Retaining and Releasing Layers
• Getting the CFType ID for a Layer
• Getting Layer Information

Path

• Creating and Managing Paths
• Modifying Quartz Paths
• Getting Information about Quartz Paths

Pattern

• Creating a Pattern
• Getting the CFType ID
• Retaining and Releasing a Pattern

PDF Array

• Getting Data from a PDF Array

PDF Content Stream

• Creating a PDF Content Stream Object
• Getting Data from a PDF Content Stream Object
• Retaining and Releasing a PDF Content Stream Object

PDF Context

• Creating a Context
• Beginning and Ending Pages
• Working with Destinations
• Working with Metadata
• Closing a PDF Context

PDF Dictionary

• Applying a Function to All Entries
• Getting Data from a Dictionary

PDF Document

• Creating PDF Document Objects
• Retaining and Releasing PDF Documents
• Getting the CFType ID for a PDF Document Object
• Getting Information About Quartz PDF Documents
• Managing Encryption

PDF Object

• Getting Object Types and Values

PDF Operator Table

• Creating a PDF Operator Table
• Setting Callback Functions
• Retaining and Releasing a PDF Operator Table

PDF Page

• Retaining and Releasing a PDF Page
• Getting the CFType ID
• Getting Page Information

PDF Scanner

• Creating a PDF Scanner Object
• Retaining and Releasing PDF Scanner Objects
• Parsing Content
• Getting PDF Objects from the Scanner Stack

PDF Stream

• Getting Data from a PDF Stream

PDF String

• Converting PDF Strings
• Getting PDF String Data

Shading

• Creating Shading Objects
• Retaining and Releasing Shading Objects
• Getting the CFType ID

Affine Transform

• Creating an Affine Transformation Matrix
• Modifying Affine Transformations
• Applying Affine Transformations
• Evaluating Affine Transforms

Geometry

• Creating a Dictionary Representation from a Geometric Primitive
• Creating a Geometric Primitive from a Dictionary Representation
• Creating a Geometric Primitive from Values
• Modifying Rectangles
• Comparing Values
• Checking for Membership
• Getting Min, Mid, and Max Values
• Getting Height and Width
• Checking Rectangle Characteristics