You can specialize the following two generic functions:

COMMON-GRAPHICS::REDISPLAY-WINDOW

COMMON-GRAPHICS::RESIZE-WINDOW

Also, there are several keyword arguments to open-stream,
such as :user-scrollable, :user-resizable, etc... that control 
the behavior you want.

Finally you should use/inherit from  the classes
common-graphics::bitmap-window & commmon-graphics::bitmap-dialog-pane
to get the self-refreshing aspect (i.e. backing-store).

Ray,


________________________________________________________________________
Raymond de Lacaze
Blackboard Technology Group, Inc.                  http://www.bbtech.com
401 Main Street                                      Phone: 413-256-8990
Amherst, MA  01002                                     Fax: 413-256-3179





On Wed, 6 May 1998, Antoine Zahnd wrote:

> Hello,
> 
> I use Allegro CL for windows 3.0.1 and I would like a resizable
> non-scrolable, refreshing window!
> 
> Even better, how can I intercept a resize event and an on-paint event? 
> What I need is to know
> when the window is resized (only specific width and height will be allowed)
> and when the window
> needs to be re-paint.
> 
> What I have try is the following:
> 
> A non-scrolable resizable bitmap-window, but then it is impossible to
> obtain a larger window that
> the one design in the interface builder (If scrolable it is possible).
> 
> A non-scrolable resizable frame-window, but then I don't know where to
> write the re-paint code.
> 
> Either way I would like to control at run time the dimensions of the
> window, say for example that
> when resizing it, only the width and height which are multiple of 10 will
> be possible (done by
> rounding).
> 
> 
> Thank you very much in advance for your replies.
> Antoine.
>