how to hide discrete toggle button not hidding the button completely (button->draw_indicator hide it completely)

[Ignacio Nodal <inodal teleline es>]

Is there any way to hide the discrete toggle button from a check button? 
I have add a pixmap to the button
"gtk_container_add(GTK_CONTAINER(_boolean_button), _pixmap);"
This pixmap changes its GdkPixmap according to the
_boolean_button->active value (TRUE or FALSE), so I don't need the
discrete toggle button's visual reference any more.

Thanks,
	Ignacio Nodal