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The event handler is not signalled in the current LCL implementation.
Source position: comctrls.pp line 1586
protected property TCustomListView.OnDataHint : TLVDataHintEvent |
OnDataHint is not used in the current LCL implementation. In virtual mode (OwnerData = True), only the most recently accessed virtual list item exists in the list view control. The data hinting, or pre-fetch caching, feature is not used in the current implementation.