Calling a VC++ dll's function from vb.net

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Hi,

I am having a VC++ dll which is used to create GUID for our application.
The VC++ funciton is given below. The name of the dll is GUIDDll.dll. The function used to call is "metodo".

C++

CString metodo(CString &strGUID,short ID)
{
    ACNCreateNewGUID(strGUID,ID);
    return strGUID;
}

The input parameter is ID and the output parameter is strGUID. Can anyone please tell me how to call the function "metodo" from vb.net. If possible, please share me sample code snippet to call the function.

When I am trying to call this function, it is throwing an error "Unable to find out the entry point of the dll GUIDDll.dll".

Thanks,
Sivakumar.M.

Posted 14-Sep-10 3:34am

sivakumar.mariappan

Updated 14-Sep-10 6:02am

Sandeep Mewara

v2

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E.F. Nijboer · Answer 1 · 2010-09-14T03:42:00

Solution 1

You are really the first one here to encounter this problem ;P

Have a look:
http://www.codeproject.com/script/Answers/List.aspx?kw=call+c+dll+from+v[^]

Good luck!

Posted 14-Sep-10 3:42am

E.F. Nijboer

Comments

sivakumar.mariappan 14-Sep-10 10:15am

Sorry i am not able to access the link you have given. throwing a message like below.

"Sorry, no entries were found matching keywords call c dll from "

Thanks,
Sivakumar.M.

E.F. Nijboer 16-Sep-10 12:46pm

The search phrase wasn't completely preserved. Try a search on codeproject.com with "call c dll from vb.net" and/or "call c++ dll from vb.net". This will give you better results :-)

#realJSOP · Answer 2 · 2010-09-14T06:15:00

Solution 2

You need to learn about pInvoke. The topic is too broad and lengthy to discuss in an answer here. Have you tried googling it?

Posted 14-Sep-10 6:15am

#realJSOP

Comments

sivakumar.mariappan 15-Sep-10 8:59am

Thanks to everybody. This issue has been fixed.