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Verifies the handles for child menu items on the menu.
Source position: menus.pp line 238
protected procedure TMenuItem.CheckChildrenHandles; |
CheckChildrenHandles recursively checks menu items to ensure that handles for merged / child menu items are freed when they are hidden, or not owned by a menu item on the menu. No actions are performed in the method when Items has not been assigned.
At run-time, InitiateActions is called to ensure that the visibility of child Items with an action are up-to-date. If AutoLineReduction is in effect, RethinkLines is called to remove redundant menu separators. These actions are not performed at design-time.
The handle for hidden menu items in MergedItems are freed. The handle for visible menu items in MergedItems are freed and re-created.
CheckChildrenHandles is called from CreateHandle when the handle for a menu item is allocated. It is also called when a menu item is merged into another menu or item. Finally, it is called when update notifications are handled for the class instances in the Items property.
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Creates the Handle for the menu item. |
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Handle for the menu item allocated in the widgetset class. |
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Menu where the menu item is displayed. |
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The parent menu item for the class instance. |
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Provides indexed access to the child menu items for the current class instance. |
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Returns the visible and invisible child items taking the merged menu into account. |
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Menu item where the current class instance was merged. |
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Updates Actions in child menu items. |
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Updates the Action in the ActionLink for the menu item. |
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Indicates the method used to perform line reduction for the menu item and optionally for its child Items. |
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Performs actions needed to update the visibility of child menu separators and signal the OnChange event handler for the changes. |
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Action is the default action associated with the menu item. |
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Indicates whether the menu item is visible (True) or hidden (False). |
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Notifies the parent and the merged menu item that a child menu item has been added, extracted, or deleted. |
| Version 4.0 | Generated 2025-05-03 | Home |