Grx Reference Manual: Grx Reference Manual

for Grx 3.1.1 The latest version of this documentation can be found on-line at http://docs.ev3dev.org/projects/grx/en/latest/c-api.

Abstract

Grx is a 2D graphics library originaly written by Csaba Biegl for DJ Delorie's DOS port of the GCC compiler. This version has been adapted to be compatible with the GObject type system.

I. API Reference

Drivers, Modes and Contexts

Video drivers and modes — Video drivers and modes
Frame Modes — Graphics memory layouts
Graphics Contexts — Drawing regions
Extents, viewports and clipping — Size information about the current context and the screen

Drawing

Color Management — Colors and color tables
Graphics Primitives — Basic drawing functions
Non-clipping Graphics Primitives — Slightly faster, less safe drawing functions
Customized line drawing — Thick and dashed line drawing primitives
Pattern filled graphics primitives — Patterned drawing and filling primitives
Text Drawing — Fonts and text primitives
Drawing in user coordinates — Drawing in user window coordinates

Keyboard, Mouse and Touchscreen Input

Events — Event handling
Key Symbols — Key Symbols
Input Device Manager — Device manager for input devices
Input Devices — Object that represents individual input devices
Graphics cursors — Cursors

Miscellaneous

Errors — GRX error domain
Image File Formats — Loading and saving image data to standard formats (JPEG, PNG, PNM)

Applications

GrxApplication — Linux console application class

Annotation Glossary