GI.Gtk.Objects.CClosureExpression

A variant of GtkClosureExpression using a C closure.

Exported types

newtype CClosureExpression

Memory-managed wrapper type.

Constructors

CClosureExpression (ManagedPtr CClosureExpression)

Instances

Eq CClosureExpression

Defined in GI.Gtk.Objects.CClosureExpression

Methods

(==) :: CClosureExpression -> CClosureExpression -> Bool

(/=) :: CClosureExpression -> CClosureExpression -> Bool

BoxedPtr CClosureExpression

Defined in GI.Gtk.Objects.CClosureExpression

Methods

boxedPtrCopy :: CClosureExpression -> IO CClosureExpression

boxedPtrFree :: CClosureExpression -> IO ()

ManagedPtrNewtype CClosureExpression

Defined in GI.Gtk.Objects.CClosureExpression

Methods

toManagedPtr :: CClosureExpression -> ManagedPtr CClosureExpression

TypedObject CClosureExpression

Defined in GI.Gtk.Objects.CClosureExpression

Methods

glibType :: IO GType

HasParentTypes CClosureExpression

Defined in GI.Gtk.Objects.CClosureExpression

type ParentTypes CClosureExpression

Defined in GI.Gtk.Objects.CClosureExpression

type ParentTypes CClosureExpression = '[Expression]

class (BoxedPtr o, TypedObject o, IsDescendantOf CClosureExpression o) => IsCClosureExpression o

Type class for types which can be safely cast to CClosureExpression, for instance with toCClosureExpression.

Instances

(BoxedPtr o, TypedObject o, IsDescendantOf CClosureExpression o) => IsCClosureExpression o

Defined in GI.Gtk.Objects.CClosureExpression

toCClosureExpression :: (MonadIO m, IsCClosureExpression o) => o -> m CClosureExpression

Cast to CClosureExpression, for types for which this is known to be safe. For general casts, use castTo.

Methods

Click to display all available methods, including inherited ones

Methods

bind, evaluate, isStatic, ref, unref, watch.

Getters

getValueType.

Setters

None.

new

cClosureExpressionNew

Arguments

:: (HasCallStack, MonadIO m)

=> GType

valueType: the type of the value that this expression evaluates to

-> Maybe ClosureMarshal

marshal: marshaller used for creating a closure

-> [Expression]

params: expressions for each parameter

-> Callback

callbackFunc: callback used for creating a closure

-> m CClosureExpression

Returns: a new GtkExpression

Creates a GtkExpression that calls callback_func when it is evaluated.

This function is a variant of closureExpressionNew that creates a GClosure by calling g_cclosure_new() with the given callback_func, user_data and user_destroy.