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Get the item index for the given client coordinates.
Source position: stdctrls.pp line 621
public function TCustomListBox.ItemAtPos( |
const Pos: TPoint; |
Existing: Boolean |
):Integer; |
Pos |
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The item position. |
Existing |
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True when the index is requested for insertion of a new item. |
The calculated item index, can be out of the Items bounds.
ItemAtPos is an Integer function used to get the index position in Items for the value at the specified screen coordinates.
Pos is TPoint instance with the X and Y coordinates used in the method.
Existing indicates whether the return value is set to -1 or the number of entries in Items when Pos refers to entry which does not exist. When Existing is set to True, -1 is returned for an invalid entry. Otherwise, the value in Item.Count is returned.
ItemAtPos calls GetIndexAtXY using the X and Y values in Pos to locate the index for the item.
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Gets the index for the item at the given client coordinates. |
| Version 4.0 | Generated 2025-05-03 | Home |