[issue5710] ctypes should return composite types from callbacks

[Russell Keith-Magee]

Russell Keith-Magee <freakboy3742 at gmail.com> added the comment:

For those interested, we developed a workaround for this in Rubicon: 

https://github.com/pybee/rubicon-objc/pull/85/files

The fix involves using ctypes to access ctypes own internals, and build a modified version of the Structure data type that is able to perform a copy when used as returned value. 

Hopefully we'll be able to get this into the form of a patch for ctypes that is acceptable to Python core.

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nosy: +freakboy3742

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