Re: [AD] crash.. destroy_bitmap( a system bitmap );

[aj <aj@xxxxxxxxxx>]

> > if normal procedure is to destroy system bitmaps before returning to text
> > mode,  can that be documented somewhere near the
> >
> > \allegro\docs\html\alleg009.html#destroy_bitmap
>
> IMHO, it would be better suited in the entry for set_gfx_mode() than in the
> entry for destroy_bitmap(), since it's the act of switching the display mode
> that apparently destroys the bitmaps.
> I'm not sure that this is a general thing though. It could be peculiar to
> DirectX, in which case it should probably be in the Windows specifics section.




the crash does NOT occur during the set_gfx_mode()
it crashes during  destroy_bitmap()

it should go near the destroy_bitmap()  docuementation, coz that is where 
users will look when the crash occurs.

there is no problems with the set_gfx_mode()
i would have no idea to look at that place in the documenation if  i had a 
problem with destroy_bitmap()
it is possible to destroy_bitmap()  on memory bitmaps after 
you  set_gfx_mode(TEXT).. its just the code within destroy_bitmap()  uses a 
gfx_driver-> ptr  which is set to NULL by (i presume) 
the  set_gfx_mode(TEXT) call.


> Unless this is a bug, of course.



its sort of is,, and it sort of is not....   if it is to be left as is, 
then i strongly suggest it gets documented so allegro users can get on with 
coding instead of relying on a debugger to identify problems, as i have had to.