Tony
On Mon, May 18, 2009 at 8:12 PM, Dr. David Alan Gilbert <gilbertd@xxxxxxxxxxx> wrote:
* Tony Wang (wangtao.adi@xxxxxxxxx) wrote:
> Hi Guys,
> Why there is always one expose-event after
> the button-press-event(and button-release-event)? that means my app redraw
> itself twice for one button event, which made the app UI flickers, any clues
> for settling the problem?
Because the button is highlighted when you press it and returned to normal
when you release. Is it just the button that's getting the redraw
or something else?
(You can also get a redraw for the highlight box indicating who has
the focus)
Dave
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