JCL Help:TJclBitmap32.OnChange
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Summary
Occurs when the image has just changed.
Pascal
published property OnChange: TNotifyEvent;
Description
OnChange is called immediately after the object changes. For example, TJclThreadPersistent’s descendant TJclBitmap32 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.
See Also
TJclThreadPersistent.BeginUpdate TJclThreadPersistent.Changed TJclThreadPersistent.TJclBitmap32 TJclThreadPersistent.TJclThreadPersistent
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