Re: Redisplay problems?

[martin rudalics]

>> But it's a redraw when we expose a hitherto invisible/obscured frame
>> whose contents have changed while it was invisible/obscured.
>
> If the glyph matrices of such a frame were updated when the contents
> changed, then there's no need to recompute them at expose event time.

But wasn't the whole idea of maintaining an "obscured" state to not
update the glyph matrices when a change occurs while the frame is
obscured but instead to wait until the frame gets exposed again?

martin