From: Wolfgang <wollez@...>
Date: 2005-05-30T20:35:21+09:00
Subject: Re: WIN32API

Hello Brian,

up to now I only have this in ruby:

require 'Win32API'
win = Win32API.new("dlltest.dll","DLL_WOOD",[],'L')
somevalues = win.call()
print somevalues

the self made dll should return at the moment a fixed value (for 
testing). I tried this with an integer, than it works. As soon I define 
the variable in fortran as real, I get this nice numbers.

Wolfgang



Brian Schr�der wrote:
> On 30/05/05, Wolfgang <wollez@gmx.net> wrote:
> 
>>Hello,
>>
>>I started programming not too long ago, so please excuse this question
>>if it is too silly.
>>
>>I wrote a small dll in fortran wich gives back a number. when I call
>>this dll from ruby I get this number only when it is defined as integer
>>in fortran. When I change it to real I get "1065353216" when the dll
>>should give back 1.0
>>
>>What do I make wrong?
>>
>>Thanks
>>
>>Wolfgang
>>
>>
> 
> 
> It seems to me that you are reading the return value of the dll
> function as an integer, while a floating point number is returned. How
> are you're interfaces defined. Could you post some code?
> 
> best regards,
> 
> Brian
> 
>