By default, the Icon property is 0, which indicates no icon is displayed. If the Icon property is set to a value different than zero, it indicates the index of the icon to be displayed. The Images method of the control loads a collection of icons to be used in the control. No icon is displayed, if the index if not valid. Once the Icon property is set, the old content of the picture is unloaded. Setting the Icon property changes the Width and Height properties of the ExPicture object to 16.