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How to import some functions written by visual C++ into IDL? [message #37521]

Tue, 06 January 2004 17:56

bbhyun2001
Messages: 5
Registered: January 2004

Junior Member

Hello,
I want to import some functionalities written
by visual C++ into IDL code? How can I do that? What is the best way
to do it? Do I need to rewrite all existing 'visual C++' code into
'C'? Would you please let me know the good example if it is possible?
Thanks for your precious time in advance.

Hee Chun

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Re: How to import some functions written by visual C++ into IDL? [message #37597 is a reply to message #37521]

Thu, 08 January 2004 10:45

bbhyun2001
Messages: 5
Registered: January 2004

Junior Member

Thanks Rick.
I DO really really appreciate your good tips. You save a lot of my time.
I will start with DLM.
Have a nice day !!

Hee Chun
"Rick Towler" <rtowler@u.washington.edu> wrote in message news:<bthre3$jvc$1@nntp6.u.washington.edu>...
> "IDLUser" wrote in message...
>
>> I want to import some functionalities written
>> by visual C++ into IDL code? How can I do that? What is the best way
>> to do it? Do I need to rewrite all existing 'visual C++' code into
>> 'C'? Would you please let me know the good example if it is possible?
>> Thanks for your precious time in advance.
>
> You certainly don't need to rewrite your code. You can use either
> CALL_EXTERNAL (make sure you read about the AUTO_GLUE keyword) or you can
> write a wrapper DLM which calls your C++ functions.
>
> Read the documentation on CALL_EXTERNAL, then read it again. Then try to
> determine if it will work for you. If it isn't going to work, then I would
> invest in Ronn Kling's Calling C/C++ from IDL which you can purchase from
> his website www.kilvarock.com. With the help of this book you will be
> calling C++ functions in a few hours.
>
> -Rick

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Re: How to import some functions written by visual C++ into IDL? [message #37609 is a reply to message #37521]

Wed, 07 January 2004 12:47

Rick Towler
Messages: 821
Registered: August 1998

Senior Member

"IDLUser" wrote in message...

> I want to import some functionalities written
> by visual C++ into IDL code? How can I do that? What is the best way
> to do it? Do I need to rewrite all existing 'visual C++' code into
> 'C'? Would you please let me know the good example if it is possible?
> Thanks for your precious time in advance.

You certainly don't need to rewrite your code. You can use either
CALL_EXTERNAL (make sure you read about the AUTO_GLUE keyword) or you can
write a wrapper DLM which calls your C++ functions.

Read the documentation on CALL_EXTERNAL, then read it again. Then try to
determine if it will work for you. If it isn't going to work, then I would
invest in Ronn Kling's Calling C/C++ from IDL which you can purchase from
his website www.kilvarock.com. With the help of this book you will be
calling C++ functions in a few hours.

-Rick

Report message to a moderator

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