How do I make invisible buttons?

[Mike Kelly <tfsmiles ecst csuchico edu>]

I'm looking for a way to make a table of buttons which are invisible to
the user except for the pixmaps which are contained within them.

Ideally, this would result in a grid-work of images that would preform some
action when pressed.  The effect I'm looking for is like that of the game of
"memory", where I would have a grid of card-backs showing, and when you
clicked on a card, it would flip over to reveal the picture on it's face.

It seems easiest to me to make a grid of buttons with pixmaps in them.  The
only problem with this approach is that each button shows a relief around it,
which I want to avoid.  I've tried changing the button's relief to
GTK_RELIEF_NONE, which works fine until the button gets focus, at which
point it draws a relief.

I'm completely open to different ideas on how to best implement this, if
you think that I'm going about this the wrong way.

PS, I'm not a regular reader of this list, so please make sure I get a copy
of your reply.

TIA,

Mike
(:

-- 
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