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Blocks selection changes during update to the widgetset class.
Source position: stdctrls.pp line 625
public procedure TCustomListBox.LockSelectionChange; |
Increments the internal counter used to track selection change events. Used in the implementation of the AssignCacheToItemData, InitializeWnd, FinalizeWnd, UpdateSelectionMode, UpdateSorted, and SetItems methods.
The value is examined when the LM_SelChange message is handled for the control.
UnlockSelectionChange is used to decrement the internal counter.
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Removes a previous selection change lock. |
| Version 4.0 | Generated 2025-05-03 | Home |