Inheritance diagram for xtd::forms::main_menu:

Definition

Represents the menu structure of a form.

Header: #include <xtd/forms/main_menu>

Namespace: xtd::forms

Library: xtd.forms

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Examples: The following code example demonstrates the use of main_menu control.
#include <xtd/drawing/texts>

#include <xtd/forms/application>

#include <xtd/forms/form>

#include <xtd/forms/list_box>

#include <xtd/forms/main_menu>

#include <xtd/forms/menu_images>

#include <xtd/forms/message_box>

using namespace xtd;

using namespace xtd::drawing;

using namespace xtd::forms;

namespace main_menu_example {

class form1 : public form {

public:

form1() {

text("Main menu example");

menu(main_menu1);

list_box1.parent(*this);

list_box1.dock(dock_style::fill);

}

protected:

void on_form_closing(form_closing_event_args& e) override {

e.cancel(message_box::show(*this, "Are you sure you want exit?", "Close Form", message_box_buttons::yes_no, message_box_icon::question) == dialog_result::no);

};

private:

void on_menu_click(object& sender, const event_args& e) {

list_box1.items().push_back(string::format("{} clicked", as<menu_item>(sender).text()));

list_box1.selected_index(list_box1.items().size() - 1);

if (file_exit_menu_item == sender) application::exit();

}

menu_item file_open_recent_file1_menu_item {"Path/File1", {*this, &form1::on_menu_click}};

menu_item file_open_recent_file2_menu_item {"Path/File2", {*this, &form1::on_menu_click}};

menu_item file_open_recent_file3_menu_item {"Path/File3", {*this, &form1::on_menu_click}};

menu_item file_open_recent_file4_menu_item {"Path/File4", {*this, &form1::on_menu_click}};

menu_item file_new_menu_item {texts::new_(), {*this, &form1::on_menu_click}, menu_images::file_new(), shortcut::ctrl_n};

menu_item file_separator1_menu_item {"-"};

menu_item file_open_menu_item {texts::open(), {*this, &form1::on_menu_click}, menu_images::file_open(), shortcut::ctrl_o};

menu_item file_open_recent_menu_item {"Open recent", {file_open_recent_file1_menu_item, file_open_recent_file2_menu_item, file_open_recent_file3_menu_item, file_open_recent_file4_menu_item}};

menu_item file_close_menu_item {texts::close(), {*this, &form1::on_menu_click}, shortcut::ctrl_w};

menu_item file_separator2_menu_item {"-"};

menu_item file_save_menu_item {texts::save(), {*this, &form1::on_menu_click}, menu_images::file_save(), shortcut::ctrl_s};

menu_item file_save_as_menu_item {texts::save_as(), {*this, &form1::on_menu_click}};

menu_item file_separator3_menu_item {"-"};

menu_item file_page_setup_menu_item {"Page &Seup...", {*this, &form1::on_menu_click}};

menu_item file_print_menu_item {texts::print(), {*this, &form1::on_menu_click}, menu_images::file_print(), shortcut::ctrl_p};

menu_item file_print_preview_menu_item {texts::print_preview(), {*this, &form1::on_menu_click}, menu_images::file_print_preview()};

menu_item file_separator4_menu_item {"-"};

menu_item file_exit_menu_item {texts::exit(), {*this, &form1::on_menu_click}, menu_images::file_exit(), shortcut::alt_f4};

menu_item edit_undo_menu_item {texts::undo(), {*this, &form1::on_menu_click}, menu_images::edit_undo(), shortcut::ctrl_z};

menu_item edit_redo_menu_item {texts::redo(), {*this, &form1::on_menu_click}, menu_images::edit_redo(), shortcut::ctrl_shift_z};

menu_item edit_separator1_menu_item {"-"};

menu_item edit_cut_menu_item {texts::cut(), {*this, &form1::on_menu_click}, menu_images::edit_cut(), shortcut::ctrl_x};

menu_item edit_copy_menu_item {texts::copy(), {*this, &form1::on_menu_click}, menu_images::edit_copy(), shortcut::ctrl_c};

menu_item edit_paste_menu_item {texts::paste(), {*this, &form1::on_menu_click}, menu_images::edit_paste(), shortcut::ctrl_v};

menu_item edit_separator2_menu_item {"-"};

menu_item edit_select_all_menu_item {texts::select_all(), {*this, &form1::on_menu_click}, shortcut::ctrl_a};

menu_item edit_separator3_menu_item {"-"};

menu_item edit_options_menu_item {texts::options(), {*this, &form1::on_menu_click}};

menu_item view_back_menu_item {texts::back(), {*this, &form1::on_menu_click}, menu_images::view_back()};

menu_item view_forward_menu_item {texts::forward(), {*this, &form1::on_menu_click}, menu_images::view_forward()};

menu_item view_separator1_menu_item {"-"};

menu_item view_show_menu_item {"Show", {*this, &form1::on_menu_click}};

menu_item view_hide_menu_item {"Hide", {*this, &form1::on_menu_click}};

menu_item options_value_a_menu_item {"Value A", {*this, &form1::on_menu_click}, menu_item_kind::check, true, shortcut::alt_1};

menu_item options_value_b_menu_item {"Value B", {*this, &form1::on_menu_click}, menu_item_kind::check, shortcut::alt_2};

menu_item options_value_c_menu_item {"Value C", {*this, &form1::on_menu_click}, menu_item_kind::check, true, shortcut::alt_3};

menu_item options_separator1_menu_item {"-"};

menu_item options_value_d_menu_item {"Value D", {*this, &form1::on_menu_click}, menu_item_kind::radio, as<shortcut>(keys::alt | keys::d)};

menu_item options_value_e_menu_item {"Value E", {*this, &form1::on_menu_click}, menu_item_kind::radio, true, as<shortcut>(keys::alt | keys::e)};

menu_item options_value_f_menu_item {"Value F", {*this, &form1::on_menu_click}, menu_item_kind::radio, as<shortcut>(keys::alt | keys::f)};

menu_item options_separator2_menu_item {"-"};

menu_item options_value_g_menu_item {"Value G", {*this, &form1::on_menu_click}, menu_item_kind::radio, as<shortcut>(keys::alt | keys::shift | keys::left)};

menu_item options_value_h_menu_item {"Value H", {*this, &form1::on_menu_click}, menu_item_kind::radio};

menu_item options_value_i_menu_item {"Value I", {*this, &form1::on_menu_click}, menu_item_kind::radio};

menu_item help_about_menu_item {texts::about(), {*this, &form1::on_menu_click}};

menu_item file_menu_item {texts::file(), {file_new_menu_item, file_separator1_menu_item, file_open_menu_item, file_open_recent_menu_item, file_close_menu_item, file_separator2_menu_item, file_save_menu_item, file_save_as_menu_item, file_separator3_menu_item, file_page_setup_menu_item, file_print_menu_item, file_print_preview_menu_item, file_separator4_menu_item, file_exit_menu_item}};

menu_item edit_menu_item {texts::edit(), {edit_undo_menu_item, edit_redo_menu_item, edit_separator1_menu_item, edit_cut_menu_item, edit_copy_menu_item, edit_paste_menu_item, edit_separator2_menu_item, edit_select_all_menu_item, edit_separator3_menu_item, edit_options_menu_item}};

menu_item view_menu_item {texts::view(), {view_back_menu_item, view_forward_menu_item, view_separator1_menu_item, view_show_menu_item, view_hide_menu_item}};

menu_item options_menu_item {texts::options(), {options_value_a_menu_item, options_value_b_menu_item, options_value_c_menu_item, options_separator1_menu_item, options_value_d_menu_item, options_value_e_menu_item, options_value_f_menu_item, options_separator2_menu_item, options_value_g_menu_item, options_value_h_menu_item, options_value_i_menu_item}};

menu_item help_menu_item {texts::help(), {help_about_menu_item}};

main_menu main_menu1 {file_menu_item, edit_menu_item, view_menu_item, options_menu_item, help_menu_item};

list_box list_box1;

};

}

auto main() -> int {

application::run(main_menu_example::form1 {});

}

xtd::event_args
Represents the base class for classes that contain event data, and provides a value to use for events...
Definition event_args.hpp:18

xtd::forms::application::exit
static void exit()
Informs all message pumps that they must terminate, and then closes all application windows after the...

xtd::forms::application::run
static void run()
Begins running a standard application message loop on the current thread, without a form.

xtd::forms::form_closing_event_args
Provides data for the form_closing event.
Definition form_closing_event_args.hpp:22

xtd::forms::main_menu::form
friend class form
The form data allows you to specify the box of a form control.
Definition main_menu.hpp:294

xtd::forms::menu_item
Represents an individual item that is displayed within a main_menu or context_menu.
Definition menu_item.hpp:31

xtd::forms::menu::menu
menu()
Initializes a new instance of the Menu class.

xtd::forms::message_box::show
static dialog_result show(const iwin32_window &owner)
Displays a message box in front of the specified window.

xtd::as
type_t as(any_object &o)
Casts a type into another type.
Definition __as_any_object.hpp:59

xtd::console_key::e
@ e
The E key.
Definition console_key.hpp:96

xtd::forms::keys::e
@ e
The E key.
Definition keys.hpp:207

xtd::forms::message_dialog_icon::question
@ question
The message box contains a symbol consisting of a question mark in a circle. The question-mark messag...
Definition message_dialog_icon.hpp:28

xtd::forms::dialog_result::no
@ no
The dialog box return value is No (usually sent from a button labeled No).
Definition dialog_result.hpp:59

xtd::forms::status_bar_panel_style::text
@ text
The xtd::forms::status_bar_panel displays text in the standard font.
Definition status_bar_panel_style.hpp:25

xtd::forms::dock_style::fill
@ fill
All the control's edges are docked to the all edges of its containing control and sized appropriately...
Definition dock_style.hpp:35

xtd::forms::message_dialog_buttons::yes_no
@ yes_no
The message box contains Yes and No buttons.
Definition message_dialog_buttons.hpp:32

xtd::drawing
The xtd::drawing namespace provides access to GDI+ basic graphics functionality. More advanced functi...
Definition actions_system_images.hpp:10

xtd::forms
The xtd::forms namespace contains classes for creating Windows-based applications that take full adva...
Definition texts.hpp:217

xtd::text
Contains classes that represent ASCII and Unicode character encodings; abstract base classes for conv...
Definition basic_string_builder.hpp:16

xtd
The xtd namespace contains all fundamental classes to access Hardware, Os, System,...
Definition abstract_object.hpp:8

Examples: The following code example demonstrates the use of main_menu::create_standard_items factory.
#include <xtd/forms/application>

#include <xtd/forms/form>

#include <xtd/forms/list_box>

#include <xtd/forms/main_menu>

using namespace xtd;

using namespace xtd::forms;

namespace main_menu_create_standard_items_example {

class form1 : public form {

public:

form1() {

text("Main menu create standard items example");

menu(main_menu1);

list_box1.parent(*this);

list_box1.dock(dock_style::fill);

}

private:

void on_menu_click(object& sender, const event_args& e) {

list_box1.items().push_back(string::format("{} clicked", as<menu_item>(sender).text()));

list_box1.selected_index(list_box1.items().size() - 1);

// Index 0 corresponds to the file menu and index 9 corresponds to the file exit menu.

if (main_menu1.menu_items()[0].get().menu_items()[9].get() == sender) application::exit();

}

main_menu main_menu1 = main_menu::create_standard_items({*this, &form1::on_menu_click});

list_box list_box1;

};

}

auto main() -> int {

application::run(main_menu_create_standard_items_example::form1 {});

}

xtd::forms::main_menu
Represents the menu structure of a form.
Definition main_menu.hpp:42

xtd::forms::main_menu::create_standard_items
static xtd::forms::main_menu create_standard_items(const xtd::event_handler &on_click)
A factory to create a main menu with specified on click event handler.

Examples: application_enable_dark_mode.cpp, application_enable_light_mode.cpp, demo.cpp, hello_world_xtd.cpp, main_menu.cpp, main_menu_create_standard_items.cpp, some_controls.cpp, some_system_controls.cpp, and themes.cpp.

Public Constructors
	main_menu ()
	Initialize a new instance of main_menu class.

	main_menu (const std::vector< menu_item_ref > &menu_items)
	Initialize a new instance of main_menu class.

Public Static Methods
static xtd::forms::main_menu	create_standard_items (const xtd::event_handler &on_click)
	A factory to create a main menu with specified on click event handler.

static xtd::forms::main_menu	create_standard_items (const xtd::drawing::size &image_size, const xtd::event_handler &on_click)
	A factory to create a main menu with specified image size and on click event handler.

static xtd::forms::main_menu	create_standard_items (const xtd::string &theme, const xtd::event_handler &on_click)
	A factory to create a main menu with specified theme and on click event handler.

static xtd::forms::main_menu	create_standard_items (const xtd::string &theme, const xtd::drawing::size &size, const xtd::event_handler &on_click)
	A factory to create a main menu with specified theme, image size and on click event handler.

Protected Methods
xtd::uptr< xtd::object >	clone () const override
	Creates a new object that is a copy of the current instance.

intptr	create_menu_handle () override
	Creates a new handle to the Menu.

void	destroy_menu_handle (intptr handle) override
	Destroys the handle to the Menu.

void	on_item_added (size_t pos, menu_item_ref item) override

void	on_item_removed (size_t pos, menu_item_ref item) override

Additional Inherited Members
using	menu_item_collection
	Represents a collection of menu_item objects.

static constexpr int32	find_handle
	Specifies that the find_menu_item(int32, intptr) method should search for a handle.

static constexpr int32	find_shortcut
	Specifies that the find_menu_item(int32, intptr) method should search for a shortcut.

intptr	handle () const noexcept
	Gets a value representing the window handle for the menu.

virtual bool	is_parent () const noexcept
	Gets a value indicating whether this menu contains any menu items.

const menu_item &	mdi_list_item () const noexcept
	Gets a value indicating the menu_item that is used to display a list of multiple document interface (MDI) child forms.

const menu_item_collection &	menu_items () const noexcept
	Gets a value indicating the collection of menu_item objects associated with the menu.

menu_item_collection &	menu_items () noexcept
	Gets a value indicating the collection of menu_item objects associated with the menu.

menu &	menu_items (const menu_item_collection &value)
	Sets a value indicating the collection of menu_item objects associated with the menu.

const xtd::string &	name () const noexcept
	Gets the name of the menu.

menu &	name (const xtd::string &value)
	Sets the name of the menu.

const xtd::any_object &	tag () const noexcept
	Gets user-defined data associated with the control.

menu &	tag (const xtd::any_object &value)
	Sets user-defined data associated with the control.

bool	equals (const xtd::object &obj) const noexcept override
	Determines whether the specified object is equal to the current object.

bool	equals (const menu &other) const noexcept override
	Determines whether the specified object is equal to the current object.

xtd::size	get_hash_code () const noexcept override
	Serves as a hash function for a particular type.

std::optional< xtd::ref< context_menu > >	get_context_menu () const noexcept
	Gets the context_menu that contains this menu.

std::optional< xtd::ref< main_menu > >	get_main_menu () const noexcept
	Gets the main_menu that contains this menu.

virtual void	merge_menu (const menu &menu_src)
	Merges the MenuItem objects of one menu with the current menu.

xtd::string	to_string () const noexcept override
	Returns a string that represents the menu control.

	object ()=default
	Create a new instance of the ultimate base class object.

virtual type_object	get_type () const noexcept
	Gets the type of the current instance.

template<class object_t>
xtd::unique_ptr_object< object_t >	memberwise_clone () const
	Creates a shallow copy of the current object.

virtual bool	equals (const menu &) const noexcept=0
	Indicates whether the current object is equal to another object of the same type.

template<class object_a_t, class object_b_t>
static bool	equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are considered equal.

template<class object_a_t, class object_b_t>
static bool	reference_equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are the same instance.

Protected Attributes inherited from xtd::forms::menu
friend	menu_item

	menu ()
	Initializes a new instance of the Menu class.

	menu (const menu_item_collection &items)
	Initializes a new instance of the Menu class.

void	clone_menu (const menu &menu_src)
	Copies the menu that is passed as a parameter to the current menu.

	component ()
	Initialises a new instance of the component class.

virtual bool	can_raise_events () const noexcept
	Gets a value indicating whether the component can raise an event.

bool	design_mode () const noexcept
	Gets a value that indicates whether the component is currently in design mode.

Constructor & Destructor Documentation

◆ main_menu() [1/2]

xtd::forms::main_menu::main_menu ( )

Initialize a new instance of main_menu class.

◆ main_menu() [2/2]

xtd::forms::main_menu::main_menu ( const std::vector< menu_item_ref > & menu_items )

explicit

Initialize a new instance of main_menu class.

Parameters

menu_items An array of menu_item objects that will be added to the main_menu.

Member Function Documentation

◆ create_standard_items() [1/4]

static xtd::forms::main_menu xtd::forms::main_menu::create_standard_items ( const xtd::event_handler & on_click )

static

A factory to create a main menu with specified on click event handler.

Parameters

menu_items	an array xtd::forms::menu_item which will contain the created menu items.
on_click	an event handler to respond on lick event.

Returns: new main menu instance.

Remarks

The following table shows the items contained in the menu_items array and sub menu_items array :

menu_index	sub_menu_index	menu_item	sub_menu_item
0		file
0	0	file	new
0	1	file	open
0	2	file	separator1
0	3	file	save
0	4	file	save_as
0	5	file	separator2
0	6	file	print
0	7	file	print_preview
0	8	file	separator3
0	9	file	exit
1		edit
1	0	edit	undo
1	1	edit	redo
1	2	edit	separator1
1	3	edit	cut
1	4	edit	copy
1	6	edit	paste
1	6	edit	separator2
1	7	edit	select_all
2		tools
2	0	tools	customize
2	1	tools	options
3		help
3	0	help	contents
3	1	help	index
3	2	help	search
3	3	help	separator1
3	4	help	about

Examples: The following example shows how to access to edit menu item.
auto main_menu = create_standard_items(on_click_menu_items);

auto& edit_menu = main_menu.menu_items()[1].get();

xtd::forms::main_menu::main_menu
main_menu()
Initialize a new instance of main_menu class.

The following example shows how to access to search help menu item.
auto main_menu = create_standard_items(on_click_menu_items);

auto& search_help_menu = main_menu.menu_items()[3].get()[2].get();

◆ create_standard_items() [2/4]

static xtd::forms::main_menu xtd::forms::main_menu::create_standard_items	(	const xtd::drawing::size &	image_size,
		const xtd::event_handler &	on_click )

static

A factory to create a main menu with specified image size and on click event handler.

Parameters

menu_items	an array xtd::forms::menu_item which will contain the created menu items.
image_size	A xtd::drawing::size that represent the menu item image size.
on_click	an event handler to respond on lick event.

Returns: new main menu instance.

Remarks

The following table shows the items contained in the menu_items array and sub menu_items array :

menu_index	sub_menu_index	menu_item	sub_menu_item
0		file
0	0	file	new
0	1	file	open
0	2	file	separator1
0	3	file	save
0	4	file	save_as
0	5	file	separator2
0	6	file	print
0	7	file	print_preview
0	8	file	separator3
0	9	file	exit
1		edit
1	0	edit	undo
1	1	edit	redo
1	2	edit	separator1
1	3	edit	cut
1	4	edit	copy
1	6	edit	paste
1	6	edit	separator2
1	7	edit	select_all
2		tools
2	0	tools	customize
2	1	tools	options
3		help
3	0	help	contents
3	1	help	index
3	2	help	search
3	3	help	separator1
3	4	help	about

Examples: The following example shows how to access to edit menu item.
auto main_menu = create_standard_items(on_click_menu_items);

auto& edit_menu = main_menu.menu_items()[1].get();

The following example shows how to access to search help menu item.
auto main_menu = create_standard_items(on_click_menu_items);

auto& search_help_menu = main_menu.menu_items()[3].get()[2].get();

◆ create_standard_items() [3/4]

static xtd::forms::main_menu xtd::forms::main_menu::create_standard_items	(	const xtd::string &	theme,
		const xtd::event_handler &	on_click )

static

A factory to create a main menu with specified theme and on click event handler.

Parameters

menu_items	an array xtd::forms::menu_item which will contain the created menu items.
theme	The theme of menu item image.
on_click	an event handler to respond on lick event.

Returns: new main menu instance.

Remarks

The following table shows the items contained in the menu_items array and sub menu_items array :

menu_index	sub_menu_index	menu_item	sub_menu_item
0		file
0	0	file	new
0	1	file	open
0	2	file	separator1
0	3	file	save
0	4	file	save_as
0	5	file	separator2
0	6	file	print
0	7	file	print_preview
0	8	file	separator3
0	9	file	exit
1		edit
1	0	edit	undo
1	1	edit	redo
1	2	edit	separator1
1	3	edit	cut
1	4	edit	copy
1	6	edit	paste
1	6	edit	separator2
1	7	edit	select_all
2		tools
2	0	tools	customize
2	1	tools	options
3		help
3	0	help	contents
3	1	help	index
3	2	help	search
3	3	help	separator1
3	4	help	about

Examples: The following example shows how to access to edit menu item.
auto main_menu = create_standard_items(on_click_menu_items);

auto& edit_menu = main_menu.menu_items()[1].get();

The following example shows how to access to search help menu item.
auto main_menu = create_standard_items(on_click_menu_items);

auto& search_help_menu = main_menu.menu_items()[3].get()[2].get();

◆ create_standard_items() [4/4]

static xtd::forms::main_menu xtd::forms::main_menu::create_standard_items	(	const xtd::string &	theme,
		const xtd::drawing::size &	size,
		const xtd::event_handler &	on_click )

static

A factory to create a main menu with specified theme, image size and on click event handler.

Parameters

menu_items	an array xtd::forms::menu_item which will contain the created menu items.
theme	The theme of menu item image.
image_size	A xtd::drawing::size that represent the menu item image size.
on_click	an event handler to respond on lick event.

Returns: new main menu instance.

Remarks

The following table shows the items contained in the menu_items array and sub menu_items array :

menu_index	sub_menu_index	menu_item	sub_menu_item
0		file
0	0	file	new
0	1	file	open
0	2	file	separator1
0	3	file	save
0	4	file	save_as
0	5	file	separator2
0	6	file	print
0	7	file	print_preview
0	8	file	separator3
0	9	file	exit
1		edit
1	0	edit	undo
1	1	edit	redo
1	2	edit	separator1
1	3	edit	cut
1	4	edit	copy
1	6	edit	paste
1	6	edit	separator2
1	7	edit	select_all
2		tools
2	0	tools	customize
2	1	tools	options
3		help
3	0	help	contents
3	1	help	index
3	2	help	search
3	3	help	separator1
3	4	help	about

Examples: The following example shows how to access to edit menu item.
auto main_menu = create_standard_items(on_click_menu_items);

auto& edit_menu = main_menu.menu_items()[1].get();

The following example shows how to access to search help menu item.
auto main_menu = create_standard_items(on_click_menu_items);

auto& search_help_menu = main_menu.menu_items()[3].get()[2].get();

◆ clone()

xtd::uptr< xtd::object > xtd::forms::main_menu::clone ( ) const

overrideprotectedvirtual

Creates a new object that is a copy of the current instance.

Returns: A new object that is a copy of this instance.

Notes to Implementers: All controls must be override the clone method.

Implements xtd::iclonable.

◆ create_menu_handle()

intptr xtd::forms::main_menu::create_menu_handle ( )

overrideprotectedvirtual

Creates a new handle to the Menu.

Returns: A handle to the menu if the method succeeds; otherwise, 0.

Implements xtd::forms::menu.

◆ destroy_menu_handle()

void xtd::forms::main_menu::destroy_menu_handle ( intptr handle )

overrideprotectedvirtual

Destroys the handle to the Menu.

Parameters

handle A handle to the menu.

Reimplemented from xtd::forms::menu.

◆ on_item_added()

void xtd::forms::main_menu::on_item_added	(	size_t	pos,
		menu_item_ref	item )

overrideprotectedvirtual

Reimplemented from xtd::forms::menu.

◆ on_item_removed()

void xtd::forms::main_menu::on_item_removed	(	size_t	pos,
		menu_item_ref	item )

overrideprotectedvirtual

Reimplemented from xtd::forms::menu.

The documentation for this class was generated from the following file:

xtd.forms/include/xtd/forms/main_menu.hpp

Definition

Public Constructors

Public Static Methods

Protected Methods

Additional Inherited Members

Constructor & Destructor Documentation

◆ main_menu() [1/2]

◆ main_menu() [2/2]

Member Function Documentation

◆ create_standard_items() [1/4]

◆ create_standard_items() [2/4]

◆ create_standard_items() [3/4]

◆ create_standard_items() [4/4]

◆ clone()

◆ create_menu_handle()

◆ destroy_menu_handle()

◆ on_item_added()

◆ on_item_removed()