Re: [AD] window resizing

[Peter Wang <tjaden@xxxxxxxxxx>]

Elias Pschernig wrote:

> On Sun, 2004-12-19 at 15:25 -0500, Jon Rafkind wrote:
>  
>
> > You mean
> >
> > void (*resize_handler)( int w, int h, void * data );
> >    
>
> Sorry, didn't quite follow this thread (but I will read it all in a few
> days) - but why the w and h? Isn't the allegro way to use SCREEN_W and
> SCREEN_H to get w and h, so no need to pass it around?
>
>  
I think SCREEN_W and SCREEN_H would need to be deprecated with the 
callback-based design, otherwise you would get inconsistent results in 
the following case:

   int w = SCREEN_W;
   /* context switch here; window resized */
   int h = SCREEN_H;

You'd probably need a function like get_screen_dimensions(int *width, 
int *height), which would lock out the resize operation for its 
duration.  Even so, that the resize can change the screen variable *at 
any time* makes me uncomfortable.

Peter