TCustomListBox.ItemVisible function
Returns True if the item is at least partially visible in the scrollable list.
Declaration
function ItemVisible(Index: Integer): BooleanArguments
Index | Ordinal position for the item examined in the method. |
Function result
True when the specified item is at least partially visible in the control.Description
ItemVisible is a
Boolean function used to determine if
the item at the position in
Index is at least partially visible in
the list box control. The return value is
False for the following
conditions:
- Index is out of range for the values in Items.
- An item rectangle could not be retrieved from the widgetset class.
- The item rectangle is invalid for the control (where Bottom < 0 or Top > ClientHeight).
Use ItemFullyVisible to determine if the specified list box item
is fully visible in the control.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.
