### Class method

# Gtk WidgetClass bind_template_callback_full

#### Declaration [src]

    void
    gtk_widget_class_bind_template_callback_full (
      GtkWidgetClass* widget_class,
      const char* callback_name,
      GCallback callback_symbol
    )

#### Description [src]

Declares a `callback_symbol` to handle `callback_name` from the template XML defined for `widget_type`.

This function is not supported after `gtk_widget_class_set_template_scope()` has been used on `widget_class`. See `gtk_builder_cscope_add_callback_symbol()`.

Note that this must be called from a composite widget classes class initializer after calling `gtk_widget_class_set_template()`.

#### Parameters

`callback_name`

  Type: `const char*`

  The name of the callback as expected in the template XML.

  The data is owned by the caller of the method.
  The value is a NUL terminated UTF-8 string.

`callback_symbol`

  Type: `GCallback`

  The callback symbol.