Represents an instance of the QML class which wraps the type tt.

Creates a QML object given a Class and a Haskell value of type tt.

Creates a QML object given a Haskell value of type tt which has a DefaultClass instance.

Returns the associated value of the underlying Haskell type tt from an instance of the QML class which wraps it.

Represents an instance of a QML class which wraps an arbitrary Haskell type. Unlike ObjRef, an AnyObjRef only carries the type of its Haskell value dynamically and does not encode it into the static type.

Upcasts an ObjRef into an AnyObjRef.

Attempts to downcast an AnyObjRef into an ObjRef with the specific underlying Haskell type tt.

Represents a QML class which wraps the type tt.

Creates a new QML class for the type tt.

The class DefaultClass specifies a standard class definition for the type tt.

Represents a named member of the QML class which wraps type tt.

Defines a named method using a function f in the IO monad.

The first argument to f receives the "this" object and hence must match the type of the class on which the method is being defined. Subsequently, there may be zero or more parameter arguments followed by an optional return argument in the IO monad.

Alias of defMethod which is less polymorphic to reduce the need for type signatures.

Supports marshalling Haskell functions with an arbitrary number of arguments.

Defines a named signal. The signal is identified in subsequent calls to fireSignal using a SignalKeyValue. This can be either i) type-based using Proxy sk where sk is an instance of the SignalKeyClass class or ii) value-based using a SignalKey value creating using newSignalKey.

Defines a named signal with named parameters. This is otherwise identical to defSignal, but allows QML code to reference signal parameters by-name in addition to by-position.

Fires a signal defined on an object instance. The signal is identified using either a type- or value-based signal key, as described in the documentation for defSignal. The first argument is the signal key, the second is the object, and the remaining arguments, if any, are the arguments to the signal as specified by the signal key.

If this function is called using a signal key which doesn't match a signal defined on the supplied object, it will silently do nothing.

This function is safe to call from any thread. Any attached signal handlers will be executed asynchronously on the event loop thread.

Values of the type SignalKey identify distinct signals by value. The type parameter p specifies the signal's signature.

Creates a new SignalKey.

Instances of the SignalKeyClass class identify distinct signals by type. The associated SignalParams type specifies the signal's signature.

Supports marshalling an arbitrary number of arguments into a QML signal.

Defines a named constant property using an accessor function in the IO monad.

Defines a named read-only property using an accessor function in the IO monad.

Defines a named read-only property with an associated signal.

Defines a named read-write property using a pair of accessor and mutator functions in the IO monad.

Defines a named read-write property with an associated signal.

Alias of defPropertyConst which is less polymorphic to reduce the need for type signatures.

Alias of defPropertyRO which is less polymorphic to reduce the need for type signatures.

Alias of defPropertySigRO which is less polymorphic to reduce the need for type signatures.

Alias of defPropertyRW which is less polymorphic to reduce the need for type signatures.

Alias of defPropertySigRW which is less polymorphic to reduce the need for type signatures.