About

GammaRay is a tool to poke around in a Qt-application and also to manipulate the application to some extent. GammaRay uses various DLL injection techniques to hook into an application at runtime and provide access to a lot of interesting information.

Plugins

Starting with version 1.2, GammaRay provides the ability to write your own plugins. This documentation describes the API for doing just that.

Features

GammaRay can:

Browse the QObject tree with live updates.
View, and to some extent, edit QObject static and dynamic properties.
View and call slots of a QObject (similar to qdbusviewer).
View other QObject elements such as signals, enums and class information introspectively.
List all QObject inbound and outbound signal/slot connections.
Provide live widget preview. Useful for finding layout issues).
View the content of any QAbstractItemModel (QAIM). Very useful when debugging a proxy model chain for example.
Browse the QAbstractProxyModel (QAPM) hierarchy.
Browse the QGraphicsView (QGV) item tree of any QGV scene.
Show a live preview of QGV items, including showing their coordinate system, transformation origin, rotate/zoom/pan, etc.
Act as a complete java script debugger, attachable to any QScriptEngine (including the usually not accessible one used by QML internally).
Perform HTML/CSS/DOM/JS introspection/editing/profiling on any QWebPage, thanks to QWebInspector.
Browse the QResource tree and its content.
Browse QStateMachines, along with their states and transitions.
Show all registered meta types.
Show all installed fonts.
Show all available codecs.
Browse all QTextDocuments, along with the ability to edit them and view their internal structures.
Show all QTimers and their statistics (number of wakeups, wakeup time, ...)

License

The GammaRay Software is (C) 2010-2015 Klarälvdalens Datakonsult AB (KDAB), and is available under the terms of the GPL version 2 (or any later version, at your option). See LICENSE.GPL.txt for license details.

Commercial use is also permitted as described in ReadMe-commercial.txt.

About KDAB

GammaRay is supported and maintained by Klarälvdalens Datakonsult AB (KDAB)

KDAB, the Qt experts, provide consulting and mentoring for developing Qt applications from scratch and in porting from all popular and legacy frameworks to Qt. We continue to help develop parts of Qt and are one of the major contributors to the Qt Project. We can give advanced or standard trainings anywhere around the globe.

Please visit http://www.kdab.com to meet the people who write code like this.