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Groups > comp.lang.python > #37222

Re: handling return codes from CTYPES

Date 2013-01-21 16:52 +0000
From Steve Simmons <square.steve@gmail.com>
Subject Re: handling return codes from CTYPES
References <50FD1C6F.6030801@gmail.com> <50FD5B47.8030807@vrplumber.com>
Newsgroups comp.lang.python
Message-ID <mailman.761.1358797637.2939.python-list@python.org> (permalink)

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Mike,

Thanks for your response - I was puzzled by one part of it though...

    On 21/01/2013 15:14, Mike C. Fletcher wrote:
>     That's because you've just discarded the object you created

I (mis?)understood from the ctypes documentation that '>>> initResult = 
c_short(0)' would result in the creation of a ctypes 'short' called 
initResult and that this object would be mutable.  On that basis, I 
expected the following statement '>>> initResult = initScanLib( ... )' 
would assign the result of the call to initResult.

So, I can understand that I am not using the correct approach but I 
don't understand how I discarded the object I created.  Can you clarify 
please?

Steve

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Re: handling return codes from CTYPES Steve Simmons <square.steve@gmail.com> - 2013-01-21 16:52 +0000

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