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.NET implementation of iDispatch::Invoke
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IT & Programming > Software Application

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Aug 11, 2012
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  • Posted: Fri, Jul 13, 2012
  • Time Left: Closed
  • Location: Anywhere
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  • Start: Immediately
  • Budget: $500 - $1,000
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.NET framework version 4.0 has a new feature that allows the customization of the comInterop of .NET through the use of ICustomQueryInterface.

This interface allows us to customize the handling of interfaces and calls to classes like iDispatch.

The aim of this project is to write a customer implementation of iDispatch::Invoke method in .NET using the ICustomQueryInterface method (and other related methods GetIDsOfNames etc) and implement some custom functionality within these calls.

Specifically this will be to modify the default behaviour of how the current .NET iDispatch::Invoke call manages default properties on COM objects.

Further Information:
The handling of default properties on COM exposed .NET objects is not consistant and backward compatible with how it worked with a VB6 com object. Attached are some examples of the specific issue and how to reproduce the problem in .NET.

The aim of the project is to make a .NET exposed com object behaive in exactly the sa...

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Job ID: 31924723
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