These documents provide guidelines and best practices for using Qt to solve specific technical problems. They are listed alphabetically by the first word in the title, so scan the entire list to find what you want.
Books about GUI Design
Some recommended books about GUI design.
Calling Qt Functions From Unix Signal Handlers
You can't. But don't despair, there is a way...
Coordinate System
Information about the coordinate system used by the paint system.
Creating Custom Qt Types
How to create and register new types with Qt.
Creating Shared Libraries
How to create shared libraries.
Creating and Using Components for Qt Designer
How to create and use custom widget plugins.
Desktop Integration
Integrating with the user's desktop environment.
Exception Safety
A guide to exception safety in Qt.
Hardware Acceleration and Embedded Platforms.
How to use hardware acceleration for fast rendering.
How to Use X11 Overlays with Qt
Implementing Atomic Operations
A guide to implementing atomic operations on new architectures.
OpenVG Rendering in Qt
Efficient rendering on embedded devices with OpenVG
Phonon multimedia framework
Using the Phonon multimedia framework in Qt.
QTestLib Tutorial
A short introduction to testing with QTestLib.
QtSvg Module
The QtSvg module provides classes for displaying and creating SVG files.
Restoring a Window's Geometry
How to save & restore window geometry.
Rich Text Processing
An overview of Qt's rich text processing, editing and display features.
SQL in Qt
Qt API's for using SQL.
Session Management
How to do session management with Qt.
Setting the Application Icon
How to set your application's icon.
Standard Accelerator Keys
Recommended accelerator keys.
Timers
How to use Qt timers in your application.
Using QtDBus Adaptors
How to create and use DBus adaptors in Qt.