I have a class that derives from Fl_Group, and contains several widgets. When I
call activate() for one of the deactivated widgets (Fl_Round_Button for
instance) then somehow draw() is called for the whole Fl_Group class. This
causes the group to flicker on the screen once. I guess that it flickers
because it takes some time to redraw all of the widgets in the group.
Do you know how could I stop the whole group from redrawing when I change just
one of it's children ? Optimally, only the changed widget should be redrawn.
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