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passing pointers to CALL_EXTERNAL [message #11326]

Tue, 24 March 1998 00:00

hdsfkj
Messages: 12
Registered: March 1998

Junior Member

Hi Again,

Is there a way to return a pointer to an array of bytes from
CALL_EXTERNAL? My C routine
creates the array and fills it with values. I would like to just pass a
pointer to the array back to
IDL. I found an old post with dejanews that suggests it isn't possible.
I'm trying to avoid the
performance cost that goes with creating an array in IDL, passing a
reference to it to the C routine, and copying the previously created C
array to the IDL array. Thanks for any help...

Donald Green
dfg@ai.mit.edu

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