OpenEuphoria

Re: Wrap a DLL (Small Project)

• Posted by Bernie Ryan <xotron at bluefrog.com> Jul 08, 2006
• 586 views

don cole wrote:
> I was wondering if you could give the dummmies version of what WMOTOR is and
> what it is used for ? I D/Led it but can't heads or tails of it. What would
> the input be and what would the output be?
> 
> Thanks,
> 
> Don Cole
>  Bonds > Ruth.
>  Giants in second last place.

Don:

   motor.eu is an include file (library) that can be used to
   do both Windows, X-Windows programming or can be used to
   access any custom DLL on either OS system. The advantage
   is that to use a dll function/procedure all you have to
   do is declare it. To use a structure all you have to do
   is describe it using the record function.
  

record("NameOfStructure","DescriptionOfStructure")
   example:
   record("POINT", -- name of structure
"x:long:1 "&  -- member name is x. value is long integer. number of long
     integers.
"y:long:1 ")  -- member name is y. value is long integer. number of long
     integers.
   library("dll_where_function_is") -- selects which DLL to use for declares.
   -- Note when a DLL is selected it is in effect for each declare
   -- until the next DLL is selected; library() only effects declares. 
   example: library("user32.dll")
   declare("some_function_name",#of_parameters,TypeOfReturn)
   -- TypeOfReturns  u - unsigned s - signed n - none (which is a procedure)
   example: declare("ScreenToClient",2,s) -- 2 params. returns signed.
   -- using a function
   example:
   atom RetValue, lpPoint
   lpPoint = struc("POINT") -- create a point structure.
   RetValue = f("ScreenToClient",{hMyWindow,lpPoint}) -- call the function. 
  

   If you understand windows programming, you should be able
   to look at the demos which are highly commented; and easily
   understand it's use.

Bernie

My files in archive:
WMOTOR, XMOTOR, W32ENGIN, MIXEDLIB, EU_ENGIN, WIN32ERU, WIN32API 

Can be downloaded here:
http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=bernie+ryan