THYDXMenuController

Overview

The THYDXMenuController class provides methods for dealing with DevExpress menu objects. This class is used to establish a connection between the Hydra framework and a specific menu component.

Use Case

If you wish to use DevExpress ExpressBars as your menu, you will need to use the THYDXMenuController component for communication between the menu component and the Hydra framework. In order to do so, you have to perform the following steps: * Create an instance of the THYDXMenuController and set the reference in the BarManager property to your TdxBarManager component. * Set the reference to the THYDXMenuController in your THYModuleManager.MenuController property.

Note: You can read about menu and toolbar usage in the Hydra framework in this article. Please also look at the Actions sample shipped with Hydra to see menu and toolbar merging in action.

Location


 

constructor Create  override    (declared in THYBaseMenuController)

Creates a new instance of the class.

constructor Create(aOwner: TComponent)

Parameters:

  • aOwner: Reference to the owner object.

AddReference  protected    (declared in THYUpdateableController)

procedure AddReference(const anItem: IHYVCLObjectReference)

Parameters:

  • anItem:

BarManager

References to the TdxBarManager that will be used to manage your menus.

property BarManager: TdxBarManager read write

BeginUpdate  protected override

Calls BeginUpdate prior to call(s) to AddReference. Each BeginUpdate must have an associated EndUpdate.

Items added by AddReference can subsequently be removed by a single call to DeleteUpdates.

procedure BeginUpdate(const aGUID: TGUID)

Parameters:

  • aGUID: Unique identifier of the session.

DeleteUpdates  protected override

DeleteUpdates removes all items added to the host's menu and toolbars via AddReference calls.

procedure DeleteUpdates(const aGUID: TGUID)

Parameters:

  • aGUID: Unique identifier of the session.

DoGetItems  protected override

function DoGetItems: IHYVCLMenuItem

EndUpdate  protected override

Calls EndUpdate following call(s) to AddReference preceded by BeginUpdate.

procedure EndUpdate(const aGUID: TGUID)

Parameters:

  • aGUID: Unique identifier of the session.

GetIsUpdating  protected    (declared in THYUpdateableController)

Returns the value which indicates whether controller is being updated.

function GetIsUpdating: Boolean

GetItems  protected    (declared in THYBaseMenuController)

function GetItems: IHYVCLMenuItem

GetUpdateCount  protected    (declared in THYUpdateableController)

Returns the number of processed updates.

function GetUpdateCount(const aGUID: TGUID): Integer

Parameters:

  • aGUID: Unique identifier of the session.

 

BarManager

References to the TdxBarManager that will be used to manage your menus.

property BarManager: TdxBarManager read write

 

constructor Create  override    (declared in THYBaseMenuController)

Creates a new instance of the class.

constructor Create(aOwner: TComponent)

Parameters:

  • aOwner: Reference to the owner object.

AddReference  protected    (declared in THYUpdateableController)

procedure AddReference(const anItem: IHYVCLObjectReference)

Parameters:

  • anItem:

BeginUpdate  protected override

Calls BeginUpdate prior to call(s) to AddReference. Each BeginUpdate must have an associated EndUpdate.

Items added by AddReference can subsequently be removed by a single call to DeleteUpdates.

procedure BeginUpdate(const aGUID: TGUID)

Parameters:

  • aGUID: Unique identifier of the session.

DeleteUpdates  protected override

DeleteUpdates removes all items added to the host's menu and toolbars via AddReference calls.

procedure DeleteUpdates(const aGUID: TGUID)

Parameters:

  • aGUID: Unique identifier of the session.

DoGetItems  protected override

function DoGetItems: IHYVCLMenuItem

EndUpdate  protected override

Calls EndUpdate following call(s) to AddReference preceded by BeginUpdate.

procedure EndUpdate(const aGUID: TGUID)

Parameters:

  • aGUID: Unique identifier of the session.

GetIsUpdating  protected    (declared in THYUpdateableController)

Returns the value which indicates whether controller is being updated.

function GetIsUpdating: Boolean

GetItems  protected    (declared in THYBaseMenuController)

function GetItems: IHYVCLMenuItem

GetUpdateCount  protected    (declared in THYUpdateableController)

Returns the number of processed updates.

function GetUpdateCount(const aGUID: TGUID): Integer

Parameters:

  • aGUID: Unique identifier of the session.

 

  • Hydra support for Menus and Toolbars (Delphi)
  • IHYUpdateableController
  • THYBaseMenuController
  • IHYMenuItem
  • THYDxBarToItemWrapper