Qt 4 makes it easier than ever to write multithreaded applications. More classes have been made usable from non-GUI threads, and the signals and slots mechanism can now be used to communicate between threads.

Additionally, it is now possible to move objects between threads.

• Queued Custom Type^*
• Mandelbrot^*
• Semaphores^*
• Wait Conditions^*

The QtConcurrent namespace includes a collection of classes and functions for straightforward concurrent programming.

These examples show how to apply the basic techniques of concurrent programming to simple problems.

• QtConcurrent Asynchronous Image Scaling
• QtConcurrent Map
• QtConcurrent Progress Dialog
• QtConcurrent Run Function
• QtConcurrent Word Count

Examples marked with an asterisk (*) are fully documented.