Hi Kemal.
kemal asad-syed wrote
can squeak connect to a COM object on windows platform ?
and handle the callback if any from the COM ?
if so please let me know which version an image that work well
The easiest and most flexible way I've found for talking to COM from Squeak is to use the DotNet Bridge written by John Pierce and Ben Schroeder (
http://www.saltypickle.com/SqueakDotNet).
You'll need to know how to wrap ActiveX COM objects via the .NET Interop layer, but once you've done that you can talk to your COM objects very easily. See
http://wiki.squeak.org/squeak/459 for more details.
Two caveats:
1. The bridge in its available state can't access VB6 Property Get/Let/Sets properly. However we think we found the fix for this before Christmas, so there may be a version that can access these properly soon, although see 2 below.
2. More a problem with the .NET Interop way of handling VB6 Collections, but if any of your COM objects return a VBA.Collection, the objects stored within the Collection are "anonymous". The collection works fine, but what I mean is that if you retrieve an object from the Collection its type is "System.__ComObject" - it doesn't know about any particular interface. We have a version of the bridge that will just "have a go" at calling your desired function/sub/property/whatever on an instance of one of these, any if the member exists it'll work just fine, but that's about as good as we can get it. There's no way we've found to cast the System.__ComObject to the right type, even if we *know* its type.
Hope that helps.
Simon
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