Gtk.ClosureExpression.new
Description: Reference for Gtk.ClosureExpression.new

### Constructor

# Gtk ClosureExpressionnew

#### Declaration [src]

    GtkExpression*
    gtk_closure_expression_new (
      GType value_type,
      GClosure* closure,
      guint n_params,
      GtkExpression** params
    )

#### Description [src]

Creates a `GtkExpression` that calls `closure` when it is evaluated.

`closure` is called with the `this` object and the results of evaluating the `params` expressions.

#### Parameters

`value_type`

  Type: `GType`

  The type of the value that this expression evaluates to.

`closure`

  Type: `GClosure`

  Closure to call when evaluating this expression. If closure is floating, it is adopted.

  The data is owned by the caller of the function.

`n_params`

  Type: `guint`

  The number of params needed for evaluating `closure`

`params`

  Type: An array of `GtkExpression*`

  Expressions for each parameter.

  The argument can be `NULL`.
  The length of the array is specified in the `n_params` argument.
  The called function takes ownership of the data, and is responsible for freeing it.

#### Return value

Type: `GtkClosureExpression`

A new `GtkExpression`

The caller of the function takes ownership of the data, and is responsible for freeing it.