Table of Contents
QtHaskell programs can make use of Qt's XML format for interface design, the "UI" format. QtHaskell also supports Qt's embedded ECMA/Javascript engine to make Qt applications scriptable. Calls can be made from the script environment to the Haskell environment and vice-versa, and values can also be passed back and forth between environments.
QtHaskell provides a standard wrapper for the the
QUiLoader class. In order to connect custom signals and
slots for objects described in the ".ui" file, it is necessary to override
(i.e. set a handler on) the loader object
createWidget method (see the tetrix example). "Built-in"
signals and slots can be connected on an object directly by using the
qtHaskell findChild function to obtain the object.