OpenEuphoria

Re: dll question ver 2.5

• Posted by Alexander Toresson <alexander.toresson at gmail.com> Apr 29, 2005
• 497 views

Bernie Ryan wrote:
> 
> Larry Miller wrote:
> > 
> > It is possible to call a DLL function by it's ordinal, at least in 2.4.
> > You get a handle to the DLL with GetModuleHandle and then use GetProcAddress
> > to obtain the address of the desired DLL routine. The function is then 
> > defined:
> > 
> > xxx=define_c_func("",address,{parameters},C_LONG)
> > 
> > This may not be entirely legitimate and may not work in all cases.
> > 
> > Larry Miller
> > 
> 
> Thanks Larry.
> 
> What I don't understand is why RDS dosen't just simply
> add that capability into define_c_function because I'am
> sure they are using GetProcAddress when you use the name
> of a function. if you look at define_c_function name in dll.e
> it uses the parameter " object routine_name " which
> could be passed a atom or a sequence.
>  
> 
> Bernie
> 

I don't really see the advantage of this. The programmer has to do a little less
work when wrapping a dll, however, the code becomes a lot less readable and it
depends on the functions coming in a specific order, which can cause much
confusion.

Regards, Alexander Toresson