52 lines
2.0 KiB
Markdown
52 lines
2.0 KiB
Markdown
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# vn.ib
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`vn.ib` is still under developing, encapsulation is partially done, further
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contributions are warmly welcome : )
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### Introduction
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`vn.ib` is a Python encapsulation of IB POSIX C++ API with full functionality of
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the original C++ API. The name of functions and classes is consistent with original
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C++ API.
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### Difference between vn.py and IbPy
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1. `vn.ib` is a Python encapsulation of POSIX C++ API based on Boost.Python, which
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provides higher efficiency than IbPy.
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2. `vn.ib` integrates exception handling function inside the encapsulation, which
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avoids the disconnection to the IB server when exception is triggered.
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3. `vn.ib` needs to be compiled before calling (by default, .pyd file is compiled
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under Windows 7 32bit environment), while IbPy is a pure Python library.
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4. `vn.ib` is based on 9.72 beta API, while IbPy is based on old 9.70 stable API.
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### Changes from original API
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Object comparison functions are added into `shared_ptr.h` and `SoftDollerTier.h`
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in order to automaticall encapsulate `vector` object to Python.
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### Linux version
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Currently, revision is needed to deploy `vn.ib` in Linux environment:
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1. Object comparison functions are added into `shared_ptr.h` and `SoftDollerTier.h`
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in order to automaticall encapsulate `vector` object to Python.
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2. `EReader.cpp`: EReader::bufferedRead, change `min` to `std::min` (No revision
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needed in Windows environment)
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3. `EClient.cpp`: Add `EncodeField<const char*>` in order to partially characterize
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`EncodeField<T>` (If you use GCC to compile, you need to do this, otherwise you
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will get `underfined symbol` error. MSVC is free from the error).
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We suspect that IB development team is developing and testing the API under Windows
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environment, here is the compiling process:
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1. cd `vn.ib/ibapi/linux`, run `bash build.sh` to generate twsapi.so
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2. cd `vn.ib/`, run `bash build.sh` to generate vnib.so
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### API version
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Version: IB API for Windows beta 9.72.18
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Date: 2016-09-14
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Link: [http://interactivebrokers.github.io/](http://interactivebrokers.github.io/)
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