How to pass double pointers for COM Interop via MethodInfo.Invoke ?

[glitteringsound]

Hello,

I need to make COM IntetrOp at runtime using reflections. My native COM Object's exposed methods have some parameters as pointers (DWORD*) and some double pointers (DWORD**) and some are user defined types(e.g SomeUDTType objSmeUDTType) and its pointer to pointer(i.e. SomeUDTType **pSomeUDTType).

I need to pass pointers to pointers. For now how can I be able to populate "object" array as pointers to pointers of SomeUDTType.

Native COM exposed method :

STDMETHODIMP MyCallableMethod(DWORD *value_1,BSTR *bstrName,WESContext **a_wesContext

tlbImp generated output:

DTINIDLLib.RuntimeCallingClass.MyCallableMethod(ref uint, ref string, System.IntrPtr)


Regards
Usman

[Zaccheus]

Hmm ... no answers.

The only thing I can suggest is having a look at mixed mode C++/CLI. You'd create a DLL which contains both .net code and native C++ code. That way you could pass the data to the mixed mode DLL in a .net friendly way and then convert it so that you can call the COM functions.

Maybe this article can help: http://www.codeproject.com/KB/mcpp/C___CLI_Primer.aspx