property OnChange: TNotifyEvent;
OnChange is called immediately after the object changes. For example, TNotifiablePersistent's descendant TBitmap32, uses the OnChange event to notify its parent that something was changed in a bitmap, and the screen image must be updated.
Generation of OnChange events can be prevented by calling BeginUpdate.
TBitmap32, TNotifiablePersistent, BeginUpdate, Changed
Copyright ©2000-2024 Alex Denisov and the Graphics32 Team - Graphics32 2.0 - Help file built on 18 Feb 2024