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Re: passing idl structures in call_external ? [message #6045 is a reply to message #6043]

Thu, 04 April 1996 00:00

David Foster
Messages: 341
Registered: January 1996

Senior Member

csoelle@msfd12.gwdg.de (Christian Soelle ) wrote:
>
>
> As the subject already says, does anybody know how to pass idl-structures
> to a C-function using CALL_EXTERNAL. I couldn't find anything in the help
> nor in the example programs supplied.

Most wouldn't consider this a problem, because an IDL structure
doesn't mean much in the context of a C function. The first
problem is how to declare the pointer argument in the C
function. Then you have to figure out how to reference the
structures using pointer offsets, and I'm not sure this would
work (the alignment might create problems). I hope someone
more familiar with this can address these problems.

I think you would be better off passing information to your
C routine using individual arguments.

Dave Foster
foster@bial1.ucsd.edu

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[Message index]

		Re: passing idl structures in call_external ? By: Robert Cannon on Wed, 10 April 1996 00:00
		Re: passing idl structures in call_external ? By: hahn on Thu, 04 April 1996 00:00
		Re: passing idl structures in call_external ? By: David Foster on Thu, 04 April 1996 00:00
		Re: passing idl structures in call_external ? By: rivers on Thu, 04 April 1996 00:00

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