Constructor

GtkCClosureExpressionnew

Declaration [src]

GtkExpression*
gtk_cclosure_expression_new (
  GType value_type,
  GClosureMarshal marshal,
  guint n_params,
  GtkExpression** params,
  GCallback callback_func,
  gpointer user_data,
  GClosureNotify user_destroy
)

Description [src]

Creates a GtkExpression that calls callback_func when it is evaluated.

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

Parameters

value_type

Type: GType

The type of the value that this expression evaluates to.

marshal

Type: GClosureMarshal

Marshaller used for creating a closure.

The argument can be NULL.

n_params

Type: guint

The number of params needed for evaluating closure.

params

Type: An array of GtkExpression*

Expressions for each parameter.

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.

callback_func

Type: GCallback

Callback used for creating a closure.

user_data

Type: gpointer

User data used for creating a closure.

The argument can be NULL.

The data is owned by the caller of the function.

user_destroy

Type: GClosureNotify

Destroy notify for user_data.

The argument can be NULL.

Return value

Type: GtkCClosureExpression

A new GtkExpression.

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