Re: How to know dispid of methods of event interface?
For an event interface you need to _implement_ the method,
not query it. And the even source will likely not be calling
your GetIDsOfNames anyway...
--
=====================================
Alexander Nickolov
Microsoft MVP [VC], MCSD
email: agnickolov@mvps.org
MVP VC FAQ: http://www.mvps.org/vcfaq
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"Brian Muth" <bmuth@mvps.org> wrote in message
news:u7vcTUO7GHA.3604@TK2MSFTNGP02.phx.gbl...
Working with a COM object without source code or documentation is a
hazardous occupation. In fact, there is a strong argument to avoid using
them for security and safety reasons.
Anyway, I think you are looking for IDispatch::GetIDsOfNames() if you
happen to know the method name. The problem is this only gets you part way
home. If you know nothing about the method other than the name, what
parameters are you going to pass? There is no direct means of determining
this.
Note that dispid's only apply to the IDispatch interface. You might be
able to glean more by seeing what other interfaces are supported by
examining the type library, if one is available. Often this is buried as a
resource in the DLL. You can try using the OLEVIEW tool, and selecting
"File", "View TypeLib..." and opening the DLL and see what happens.
HTH
Brian