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Pops an item of the specified type off of the head of the queue.
Source position: lazcollections.pas line 72
public function TLazFifoQueue.PopItem( |
out AItem: T |
):Boolean; virtual; |
AItem |
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Item retrieved from the head of the queue. |
True if the item was retrieved from the queue storage, False if the queue is empty.
PopItem is a Boolean function used to get the value in AItem from the head of the queue. The return value is True if the queue was not empty when the method was called. No actions are performed in the method when items have not been stored in the internal storage for the queue.
PopItem retrieves the value in AItem from the storage slot at TotalItemsPopped mod QueueSize, and increments the value in the TotalItemsPopped property.
Use PushItem to add an item to the tail of the queue.
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Indicates if none of the internal storage slots have been used in the queue storage. |
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Size (or depth) for the queue. |
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Pushes an item of the specified type onto the tail of the queue. |
| Version 4.0 | Generated 2025-05-03 | Home |