[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] | Reference for unit 'Menus' (#lcl)

# TMenu

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

TMenu : The base class for all menus

## Declaration

Source position: menus.pp line 303

`type TMenu = class(TLCLComponent)`
``
`class procedure WSRegisterClass; override;` |  | WSRegisterClass - Register this Class for the current Widget Set
`protected`
`procedure BidiModeChanged; virtual;` |  | BidiModeChanged - method for dealing with changed Bi-directional mode
`procedure CreateHandle; virtual;` |  | CreateHandle - method for creating handle
`procedure DoChange(); virtual;` |  | DoChange - perform the OnChange event, completely rebuilding the Source menuitem if Rebuild is true
`function GetHandle; virtual;` |  | GetHandle - returns the handle for this Menu
`procedure GetChildren(); override;` |  |
`procedure MenuChanged(); virtual;` |  | MenuChanged - method to signal that a menu has been changed
`procedure Notification(); override;`
`procedure ParentBidiModeChanged();` |  | ParentBidiModeChanged - procedure to deal with a change in the Parent Bi-directional mode
`procedure SetChildOrder(); override;`
`procedure UpdateItems;` |  | UpdateItems - implement all pending changes to Items
`property OnChange: TMenuChangeEvent; [rw]` |  | OnChange - event handler for a change to the menu
`public`
`FCompStyle: LongInt;` |  | FCompStyle - local variable holding value of CompStyle
`constructor Create(); override;` |  | Create - constructor for TMenu: creates menuitems and links, sets some defaults then calls inherited Create
`destructor Destroy; override;` |  | Destroy - destructor for TMenu: frees items and links, then calls inherited Destroy
`procedure DestroyHandle; virtual;` |  | DestroyHandle - method for destroying handle
`function FindItem();` |  | FindItem - returns the menuitem corresponding to the supplied value or kind
`function GetHelpContext();`
`function IsShortcut();` |  | IsShortcut - returns True if the specified message key represents a shortcut
`function HandleAllocated;` |  | HandleAllocated - returns True if a handle has been allocated
`function IsRightToLeft; virtual;` |  | IsRightToLeft - returns True if Right to Left mode is being used (eg for Hebrew or Arabic languages)
`function UseRightToLeftAlignment; virtual;` |  | UseRightToLeftAlignment - returns True if Right-Left alignment is being used
`function UseRightToLeftReading; virtual;` |  | UseRightToLeftReading - returns True if reading from Right to Left
`procedure HandleNeeded;` |  | HandleNeeded - method to signal that a handle is required
`function DispatchCommand();` |  | DispatchCommand - returns True if the supplied command is a dispatch command
`property Handle: HMENU; [r]` |  | Handle - the Operating System Handle for this Menu
`property Parent: TComponent; [rw]` |  | The Parent component for this Menu
`property ShortcutHandled: Boolean; [rw]` |  | ShortcutHandled - if True, the shortcut for the menu is properly handled
`published`
`property BidiMode: TBidiMode; [rws]` |  | BidiMode - whether Bi-directional mode is implemented, allowing use with languages like Arabic or Hebrew
`property ParentBidiMode: Boolean; [rw]` |  | ParentBidiMode - the BidiMode of the parent
`property Items: TMenuItem; [r]` |  | Items - a list of Menu Items to be included in the menu display
`property Images: TCustomImageList; [rw]` |  | Images - a list of images from which entries can be selected to illustrate menu choices
`end;`

## Inheritance

`TMenu` |  | TMenu : The base class for all menus
`TLCLComponent` |  | TLCLComponent - base class for LCL components
`TComponent,IUnknown,IInterfaceComponentReference`
`TPersistent`
`TObject`

## Description

TMenu : The base class for all menus

The class definition contains very few public or published properties or methods accessible to the application programmer, but contains the entry Items which points to the Menu Items that appear in the menu displays

## See also

HowToUseMenus |  | HowToUseMenus - hints for creating Menus for your Forms
TMainMenu |  | TMainMenu - the Main Menu that appears at the top of most windows
TPopupMenu |  | TPopupMenu - a menu panel that pops up on the desktop when the right mouse button is clicked
TMenuItem |  | TMenuItem - The base structure of each item in a Menu.

The latest version of this document can be found at lazarus-ccr.sourceforge.net .