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

# TCustomImage.OnPictureChanged

Event handler signalled when Picture is changed.

## Declaration

Source position: extctrls.pp line 605

`public property TCustomImage.OnPictureChanged : TNotifyEvent read FOnPictureChanged write FOnPictureChanged;`

## Description

OnPictureChanged is a TNotifyEvent property which contains the event handler signalled then the Picture property is changed. OnPictureChanged is signalled from the PictureChanged method, and allows actions to be performed after updates to image properties and the Invalidate method has been called.

## See also

TCustomImage.Picture |  | Contains the image displayed in the control.
TCustomImage.Transparent |  | Indicates if the image has a clear, non-opaque background.
TCustomImage.PictureChanged |  | Performs actions needed when the Picture property has been changed.
TCustomImage.Invalidate |  | Causes the control to be repainted.