firing mouseEnter msg of an Image control which was painted

[Bernard Devlin]

Hi all,

If I drag an image object to a card, mouseEnter is triggered when the mouse
enters that image control's border (no actual image filename has been
specified, so the image is "blank" - although strangely the imageData of
such a "blank" image is not itself empty).

If I then use the paint tools palette to paint a thick line in the middle
of that image, no mouseEnter is triggered on entering the control's border;
that message is not fired until the mouse enters the painted area of the
image control.

How can I get the mouseEnter to fire when the mouse enters the image
control's border, once the image control has been altered with the paint
tools?

Regards,
Bernard