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Re: Call_external [message #38500 is a reply to message #1268]

Wed, 10 March 2004 09:20

Haje Korth
Messages: 651
Registered: May 1997

Senior Member

Paul,
the first thing you have to understand is that call_external is an advanced
subject. Thus you will have to spend some time on the subject. It seems you
are trying to auto-create the dll. To me this is even more advanced. Start
simple: Take sum_array.c and compile it as dll. You need the switches -dll
and -def:sum_array.def, where sum_array.def is the module definition file
which contains your export. Study the compiler instruction on how to create
the .def file. It will not work without it! Stick to the portable calling
convention (if you actually open the .c file and read the information in the
file you will understand what I mean). Once you create the dll, you can use
sum_array.pro to test it. By using the method above you can separate
problems in execution from problems in creating the dll. I never use
autoglue, but from your errors below I am wondering whether IDL finds your
compiler at all???

Haje

"Dr Paul Ducksbury" <p.ducksbury@signal.qinetiq.com> wrote in message
news:1078929414.412397@bengal...
> Thanks for that it looks easier than MS description of building shareable
> objects and def files. Only one small problem i'm having now is that
> all_callext_examples fails as it was unable to find some files. I assume
its
> some problem so obvious its hitting me in the face, just cant see it.
>
> Anyone any ideas ?
>
> thanks
>
> IDL> all_callext_examples
> % Compiled module: ALL_CALLEXT_EXAMPLES.
> % Compiled module: SIMPLE_VARS.
> Calling simple_vars with the following arguments:
> B_L BYTE = 2
> I_L INT = 3
> L_L LONG = 4
> F_L FLOAT = 5.00000
> D_L DOUBLE = 6.0000000
> % Compiled module: GET_CALLEXT_EXLIB.
> The name specified is not recognized as an
> internal or external command, operable program or batch file.
> cl -D_DLL -DWIN32 -D_MT /nologo /I"E:\RSI\IDL60\external\include" /c
> "E:\RSI\IDL60\external\call_external\C\incr_struct.c"
> /Fo"incr_struct_166_PDPC.obj"
> Could Not Find
>
C:\WINNT\Profiles\ducksbury\.idl\idl_6_0_Win32_x86_m32_f64\c ompile_dir\call_
> external_examples_166_PDPC.exp
> Could Not Find
>
C:\WINNT\Profiles\ducksbury\.idl\idl_6_0_Win32_x86_m32_f64\c ompile_dir\call_
> external_examples_166_PDPC.lib
> Could Not Find
>
C:\WINNT\Profiles\ducksbury\.idl\idl_6_0_Win32_x86_m32_f64\c ompile_dir\incr_
> struct_166_PDPC.obj
> Could Not Find
>
C:\WINNT\Profiles\ducksbury\.idl\idl_6_0_Win32_x86_m32_f64\c ompile_dir\simpl
> e_vars_166_PDPC.obj
> Could Not Find
>
C:\WINNT\Profiles\ducksbury\.idl\idl_6_0_Win32_x86_m32_f64\c ompile_dir\strin
> g_array_166_PDPC.obj
> Could Not Find
>
C:\WINNT\Profiles\ducksbury\.idl\idl_6_0_Win32_x86_m32_f64\c ompile_dir\sum_a
> rray_166_PDPC.obj
> Could Not Find
>
C:\WINNT\Profiles\ducksbury\.idl\idl_6_0_Win32_x86_m32_f64\c ompile_dir\sum_2
> d_array_166_PDPC.obj
> % CALL_EXTERNAL: Error loading sharable executable.
> Symbol: simple_vars, File =
>
C:\WINNT\Profiles\ducksbury\.idl\idl_6_0_Win32_x86_m32_f64\c ompile_dir\call_
> external_examples.dll
> ERROR_MOD_NOT_FOUND
> % Error occurred at: SIMPLE_VARS 91
> E:\RSI\IDL60\external\call_external\C\simple_vars.pro
> % ALL_CALLEXT_EXAMPLES 58
> E:\RSI\IDL60\external\call_external\C\all_callext_examples.p ro
> % $MAIN$
> % Execution halted at: ALL_CALLEXT_EXAMPLES 58
> E:\RSI\IDL60\external\call_external\C\all_callext_examples.p ro
>
> "Haje Korth" <haje.korth@jhuapl.edu> wrote in message
> news:c2n469$63v$1@aplcore.jhuapl.edu...
>> Paul,
>> Checkout the examples in the RSI\IDL60\external directory. They are
pretty
>> self-explanatory and are probably as descriptive as it will ever be. The
>> only book on external routines that I know of, was published by Ronn
Kling
>> and specializes on DLMs. While DLM are extremely nice to handle within
> IDL.
>> They are not the easiest to implement.
>>
>> Cheers,
>> Haje
>>
>>
>>
>> "Dr Paul Ducksbury" <p.ducksbury@signal.qinetiq.com> wrote in message
>> news:1078919071.346356@bengal...
>>> Is there a simple guide to using call_external ? as i dont have the
>> external
>>> develpoment manual that the help page suggests.
>>>
>>> Im using IDL 6.0 on PC (windows) with visual c++ 6.0
>>>
>>> thanks
>>>
>>> Paul
>>>
>
>
>

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[Message index]

		CALL_EXTERNAL By: dean on Wed, 18 August 1993 09:38
		Re: Call_external By: Inigo Garcia on Thu, 12 June 1997 00:00
		Re: call_external By: Vap User on Wed, 05 August 1998 00:00
		Re: call_external By: rivers on Wed, 12 August 1998 00:00
		Re: CALL_EXTERNAL By: menakkis on Mon, 22 February 1999 00:00
		Re: CALL_EXTERNAL By: ashmall on Wed, 03 March 1999 00:00
		Re: CALL_EXTERNAL By: Nigel Wade on Mon, 22 July 2002 01:44
		Re: CALL_EXTERNAL By: ronn on Sat, 20 July 2002 06:25
		Re: CALL_EXTERNAL By: Craig Markwardt on Fri, 19 July 2002 15:00
		Re: CALL_EXTERNAL By: zaygula on Wed, 31 July 2002 07:35
		Re: CALL_EXTERNAL By: Mark Rivers on Tue, 30 July 2002 19:26
		Re: CALL_EXTERNAL By: Randall Skelton on Wed, 05 February 2003 00:47
		Re: Call_external By: Karl Schultz on Wed, 10 March 2004 11:02
		Re: Call_external By: Haje Korth on Wed, 10 March 2004 09:20
		Re: Call_external By: Dr Paul Ducksbury on Wed, 10 March 2004 06:39
		Re: Call_external By: scuaic on Thu, 11 March 2004 14:32
		Re: Call_external By: Haje Korth on Wed, 10 March 2004 05:11
		Re: Call_external By: Pepijn Kenter on Wed, 10 March 2004 05:19
		Re: Call_external By: Dr Paul Ducksbury on Wed, 10 March 2004 05:02
		Re: call_external By: Haje Korth on Sun, 17 February 2013 05:53
		Re: call_external By: Katerina Yakimenko on Thu, 07 March 2013 05:55
		Re: call_external By: David Fanning on Thu, 07 March 2013 06:42
		Re: call_external By: Katerina Yakimenko on Thu, 07 March 2013 06:23
		Re: call_external By: David Fanning on Thu, 07 March 2013 06:10

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