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Re: calling C from IDL [message #43039 is a reply to message #4008]

Wed, 09 March 2005 10:07

Haje Korth
Messages: 651
Registered: May 1997

Senior Member

Sascha,
It sounds to me the at you did not export the symbol "probiere" so that it
is not accessible to IDL. Read about .def files.

Haje

"Sascha Gossen" <s.gossen@gmx.de> wrote in message
news:f12db891.0503090610.17090054@posting.google.com...
> Hello!
>
> I have a problem in IDL. I try to call a C-Prog in IDL. I use IDL6.0
> under win2000. I will call the C-Prog with the IDL function
> "call_external". I write 2 short test-programms to see the handling of
> the function.
>
> my C-Prog "probiere.c":
>
> #include <stdio.h>
> #include <stdlib.h>
> int probiere( void ){
> int i, j;
> j = 4711;
> printf("Hello World\n");
> i = getchar();
> return j;
> }
>
> I compile this file with the Borland c++ compiler to create a
> 'probiere.dll'.
> I do this like: "bcc32 -WD probiere.c"
>
> my IDL-Prog "c_call_from_idl.pro"
>
> pro c_call_from_idl
> print, 'vor c aufruf'
> result =
> call_external('C:\sgossen\idl\igor\c-prog\probiere.dll','pro biere')
> print, 'nach c aufruf'
> print, 'result: ', result
> help, result
> end
>
> Executing this file I get following error-message:
>
> % CALL_EXTERNAL: Error loading sharable executable.
> Symbol: probiere, File =
> C:\sgossen\idl\igor\c-prog\probiere.dll
> ERROR_PROC_NOT_FOUND
>
> I don't really know where the error could be. The path of the
> .dll-file is still correct.
> Can you help me with my problem?
> Thank you!
> Sascha Gossen

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[Message index]

		calling c from idl By: ijg9766 on Thu, 20 April 1995 00:00
		Re: calling c from idl By: Emmanuel GUYOT on Mon, 24 April 1995 00:00
		Re: calling c from idl By: pellet on Mon, 01 May 1995 00:00
		Re: Calling C from IDL By: David Foster on Thu, 23 October 1997 00:00
		Re: calling C from IDL By: Haje Korth on Wed, 09 March 2005 10:07

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