Redrawing !

-----Message d'origine-----
De : Marc R. Feldesman [mailto:feldesmanm at pdx.edu]
Envoye : Sunday, January 14, 2001 2:58 PM
A : Duncan Murdoch; Yves Gauvreau
Cc : R-help at lists. R-project. org
Objet : Re: [R] Redrawing !


It's there on Windows NT as well:

Control Panel|Display|Plus

"show window contents while dragging"  (checkbox if you want this to be
True; uncheck if you don't want the behavior).



At 06:43 PM 1/14/01 +0000, Duncan Murdoch wrote:

 >On Sun, 14 Jan 2001 10:12:33 -0500, you wrote:

 >> With most Windows
 >>applications I use I observe that resizing a window (in

Windoze parlance)

 >>with the mouse kind of blanks the interior of window until

we're finish and

 >>then it is redrawn. With R's default device it is as if every

WM_MOUSEMOVE

 >>event trigger's a complete redraw of the window which make the

feeling quite

 >>different. If changing this behavior in future release is to

complicated

 >>then lets just forget it as I and most certainly any other

Windows user can

 >>live with that even more so if using a more recent graphic

card make the

 >>behavior disappear.

 >
 >One of the configuration options in Windows is whether or not to
 >attempt to redraw the complete window during move & resize operations.
 >I'm not sure how to set that in NT; in Win 9x/ME, it's in the Control
 >Panel under Display|Effects, "show window's contents while dragging".
 >I would guess that you have that option enabled, and that other
 >applications abort the redraw when they receive another message about
 >a move. (I'm guessing that because when I have the option enabled I
 >see what you're describing; I normally operate with it disabled, so I
 >only see the frame moving when I move or resize the window.)
 >
 >A future multi-threaded version of R could probably act like other
 >applications, but it would mean low-level changes in the current
 >version.  An easier workaround is just to disable that option in
 >Windows.
 >
 >Duncan Murdoch

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