From: Bruno Le hyaric <bruno.lehyaric@...>
Date: 2009-06-13T00:05:24+09:00
Subject: Re: WIN32OLE type binding

Gregory Brown wrote:
> On Fri, Jun 12, 2009 at 9:00 AM, Bruno Le
> hyaric<bruno.lehyaric@gmail.com> wrote:
>> Hi,
>>
>> My COM Web Browser is making progress...
>> I can scan COM API, get and set properties value.
>>
>> The next step is to permit RPC on methods.
> 
> Can you clarify your question a little bit?   I'm not sure whether
> you're asking how to call methods on an WIN32OLE object that are
> provided by a DLL, or if you're looking for introspection that will
> provide a methods signature...
> 
> -greg

Ok, I have a graphic interface from wich I want to call COM methods.
By introspection I know the signature of methods.
The problem is that my interface (a web page) only permits text input.
So all values I enter are Strings. I need to cast or interpret strings 
to match parameters types...

I solve the problem for put properties like that :

# obj : COM object
# prop : name of the property
# value : string value I want to put
def cast_from_string(obj,prop,value)

#call the get property, only to know the type of the Ruby object
  type = obj.send prop.to_sym

#match on Ruby types and convert the string accordingly...
  case type
  when Integer
    return value.to_i
  when Float
    return value.to_f
  when TrueClass, FalseClass
    return value == true.to_s
  else
    return value
  end
end



So I want to convert String to the matching Ruby type
To do that, I need to have a list of COM types and their matched Ruby 
types.
I wonder if there is that information somewhere in WIN32OLE...

I take a screenshot of the web page so you can have an better idea on 
what I'm trying to do :)


Attachments:
http://www.ruby-forum.com/attachment/3813/screen.JPG

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