[IronPython] Newbie InterOp-related question

[Markus Schaber]

Hi, Paul,

 

it's documented at http://ironpython.net/documentation/dotnet/dotnet.html#ref-and-out-parameters. 

 

The out parameter will be mapped as an additional return value.

 

So if myComObj.foo returns void, a simple call like

 

blah = myComObj.Foo()

 

should do the trick.

 

Grüße,

Markus

 

Von: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] Im Auftrag von Tilley, Paul
Gesendet: Mittwoch, 30. März 2011 01:10
An: users at lists.ironpython.com
Betreff: [IronPython] Newbie InterOp-related question

 

Hi,

 

I've just started using IronPython but have hit a bit of a roadblock. This may also be caused by inadequate .Net knowledge.

 

In C# I can call a COM object (where the COM method is going to fill in the parameter) like so:

object blah;

myComObj.Foo(out blah);

 

If for example the COM method returns an array of strings ( with the parameter VARIANT* in COM method signature) then in C# I get an object[] back which with appropriate massaging I can process.

 

How would I declare the variable in Python if I want access the returned contents correctly? Knowing I was to get an array back I naively tried:

blah = []

myComObj.Foo(blah)

 

The call is made correctly - I can see the COM object is filling out the return parameter OK but blah remains an empty list.

Any insights on what I should be doing more than welcome,

 

Thanks,

 

Paul

 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/ironpython-users/attachments/20110330/6bcf093d/attachment.html>