CClosureExpression

class CClosureExpression(*args, **kwargs)

Superclasses: Expression

A variant of GtkClosureExpression using a C closure.

Constructors

class CClosureExpression

classmethod new(value_type: GType, marshal: Callable[[Closure, Value | None, list[Value], Any, Any], None] | None, params: list[Expression], callback_func: Callable[[], None], user_data: Any = None) → CClosureExpression

Creates a GtkExpression that calls callback_func when it is evaluated.

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

Parameters:

• value_type – the type of the value that this expression evaluates to

• marshal – marshaller used for creating a closure

• params – expressions for each parameter

• callback_func – callback used for creating a closure

• user_data – user data used for creating a closure