Re: How to move, resize and redraw a window at the same time?
- From: "Havoc Pennington" <hp pobox com>
- To: "Zhe Su" <james su gmail com>
- Cc: gtk-devel-list gnome org, gtk-app-devel-list gnome org
- Subject: Re: How to move, resize and redraw a window at the same time?
- Date: Mon, 19 May 2008 23:52:14 -0400
Hi,
2008/5/19 Zhe Su <james su gmail com>:
> So I'm wondering is there and method to move, resize and redraw a window
> at the same time to avoid flick?
The underlying X window system doesn't support doing this, though it
may in the future as compositing managers become the norm.
The best you can do with X is to not clear the window when it's
resized, but you can't atomically resize and repaint because those
things are separate X server commands and the server does not do
whole-screen double-buffering.
> And I'm wondering why there is no
> gtk_window_move_resize() for gtk window.
Well, setting a window size and position manually on a mapped window
is a pretty uncommon operation, so most likely nobody has asked to do
it. It probably works fine to do
gdk_window_move_resize(window_widget->window) as a workaround.
The docs on gtk_window_move(), gtk_window_set_default_size(), etc.
(and the implementation source code of same) may be of interest, if
you're digging into this area.
Havoc
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