OpenEuphoria

Re: cards32.ew by Brian Broker: how move cards?

• Posted by Dan Moyer <danielmoyer at prod?gy.net> Jul 04, 2007
• 684 views

Larry Miller wrote:
> 
> Dan Moyer wrote:
> > 
> > Larry Miller wrote:
> > > 
> > > Dan Moyer wrote:
> > > > 
> > > > Brian,
> > > > 
> > > > I'm trying to use your cards32.ew to make a solitaire game, (actually
> > > > taking
> > > > your demo & altering it as needed), and I wonder if you continued with
> > > > it
> > > > to include moving cards?  I thought it would be easy, until I realized
> > > > that
> > > > it's doing a lot of "record keeping" of cards dealt onto a window, which
> > > > then
> > > > have to be handled correctly when cards are moved, I guess? 
> > > > 
> > > > I also discovered it (my alteration of your demo) won't run on a Win98
> > > > system,
> > > > can't find cards.dll, even though it's present. 
> > > > 
> > > > Dan Moyer
> > > 
> > > I am not familiar with this program but I do know about cards.dll. There
> > > are
> > > 2 versions of this DLL, the version that comes with Win98, and the one
> > > that
> > > comes with later OS's. They are not compatible. If you have a copy of the
> > > later
> > > DLL it should work with the program. Do not replace the original cards.dll
> > > as
> > > Win98 ganes will not work with it.
> > > 
> > > Larry Miller
> > 
> > 
> > Larry,
> > 
> > Thanks for the info, sounds like I need two versions of the program, one
> > to work with Win98 cards.dll & another to work with WinXP cards.dll.
> > (or one that can distinguish between op sys)
> > 
> > Here's the (first?) failure point on W98 of code that works on WinXP, would
> > you have any suggestion as to what to do to alter it for W98?  As far as I 
> > remember (I'm on XP right now), "cdtInit" is in the W98 cards.dll.
> > 
> > 
> > global constant
> >   eCdtInit = registerw32Function( cards32, "cdtInit", {C_POINTER,
> >   C_POINTER},
> > C_INT ),
> > 
> > Dan
> 
> Using the cards.dll that comes with Win98 is not easily done. Cards.dll in
> Win98
> is a 16bit dll dating back to Windows 3.0 and can not be directly accessed
> with
> 32bit code. Win98 does this by a rather awkward technique known as thunking.
> Although it is difficult, the technique is used throughout much of Win98 and
> Microsoft decided to use the old DLL rather than develop a new one.
> 
> Euphoria can not use thunking without assembly language support. For further
> information see: <a
> href="http://www.catch22.net/tuts/cardtut.asp">http://www.catch22.net/tuts/cardtut.asp</a>
> 
> This is well out of my league but others on the forum may have done this kind
> of thing. Condidering the low usage of Win98 it might be best to not support
> this platform.
> 
> Larry Miller


Thanks Larry, I was hoping to be able to work on my app on either machine,
but I see that will pretty near be impossible.

Dan