how to use com written in c++ within my silverlight5 apps

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in my project,i need to invoke a com(form of dll) developed in vc++ for something in security.could anyone show me a solution,thx in advanced.

Posted 13-Oct-13 16:06pm

koll Zhu

Updated 13-Oct-13 23:42pm

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Richard MacCutchan 14-Oct-13 7:19am

Solution for what? We have no idea what your dll does or how to access it. If you want to learn how to make or use COM in general there are some useful articles here on CodeProject.

koll Zhu 14-Oct-13 21:29pm

i want to use COM in my silverlight application.the COM component has already registed,but when i make use of the
interop method,there is an exception.
code: dynamic ccbSign = AutomationFactory.CreateObject("CCBNetSignCom.InfosecCCBNetSign");
long a = 0;
ccbSign.get_errorNum(ref a);
it always throw missmemberexception,but get_errorNum() is defined in the COM,i dont known how to resolve this issue...

Richard MacCutchan 15-Oct-13 3:46am

I am not sure what you mean by a missmemberexception, but I would guess you are trying to access a function that is not part of the DLL.

koll Zhu 15-Oct-13 4:03am

you are right,i access to a function which is not exsiting,thank u.
though,there's a new problem.i wanna to call a function that is sure part of the dll and will popup a UI when executing,but it failed,the ui cannot show...is there any restriction
?

Richard MacCutchan 15-Oct-13 9:05am

Sorry, no idea. You can either check the documentation or run some tests for yourself.

koll Zhu 16-Oct-13 21:36pm

would you like to recommend me some books about computer,like OS,C++...etc,thx

Richard MacCutchan 17-Oct-13 2:37am

There are lots of books available, it all depends on what you are interested in. Try Amazon, O'Reilly, SAMS etc and read the book reviews.

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