[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] | Reference for unit 'Controls' (#lcl)

# TControl.OnChangeBounds

Event handler signalled when the Bounds for the control have been changed.

## Declaration

Source position: controls.pp line 1810

`public property TControl.OnChangeBounds : TNotifyEvent read FOnChangeBounds write FOnChangeBounds;`

## Description

OnChangeBounds is signalled from the DoOnChangeBounds method (when assigned). It occurs after the internal control flags have been updated to exclude cfOnChangeBoundsNeeded, and before DoCallNotifyHandler is called to notify handlers for the chtOnChangeBounds type.

## See also

TControl.ChangeBounds |  | Sets the bounds (left, top, height, width) and optionally the BaseBounds of the control.
TControl.CheckOnChangeBounds |  | Checks for changes and calls DoOnChangeBounds if needed.
TControl.DoOnChangeBounds |  | Signals OnChangeBounds event handlers for the control.
TControl.DoCallNotifyHandler |  | Signals handler routines for the specified control handler type.
TNotifyEvent