# Gamma/Photon

### Using Gamma™ with the Photon microGUI®, Version 4.0

Jan 10, 2003

Gamma is the only dynamic language currently available for developing GUIs in the Photon environment. Gamma enhances Photon and PhAB with easy-to-use callbacks, expanded functionality for reusing widgets, and an object-oriented syntax.

| With version 4.0, Cogent software now includes source-code compatibility among the QNX 4, QNX 6 and Linux operating systems, a reorganized and expanded API, and other improvements. Version 4.0 of Cogent's tools will not interoperate with version 3 or older. This documentation has been edited and reorganized to reflect those changes. For documentation of Cogent software version 3.x, please contact Cogent Real-Time Systems, Inc.

Go to the Cogent Web Site.

Copyright © 1995-2002 by Cogent Real-Time Systems, Inc.

List of Tables
2-1. Using `cons` with widget flags.
1. Elements of a Widget Hierarchy
1. PxConfigWriteBool Format Options
2. PxConfigWriteChar Format Options
3. PxConfigWriteInt, -WriteLong, -WriteShort Format Options
4. PxConfigWriteString Format Options

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Copyright 1995-2002 by Cogent Real-Time Systems, Inc.