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Bug Python binding x64 / Windows 7

Hi community,

I compiled OpenCV 2.4.9 on x64 / Windows 7, with Visual Studio 2012.

To use the python binding I copied cv2.pyd in the proper place on the python path, and then got the following error upon import :

>>> import cv2
Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
ImportError: dynamic module does not define init function (initcv2)

Here's what worked for me to correct the issue

In cv2.cpp I replaced:

extern "C" CV_EXPORTS void initcv2();

with:

extern "C" __declspec(dllexport) void initcv2();

Here's what I hoped would work, but did not

trying to modify the definition of CV_EXPORTS: In cvdef.h, replace:

#if (defined WIN32 || defined _WIN32 || defined WINCE || defined __CYGWIN__) && defined CVAPI_EXPORTS

with:

#if (defined WIN32 || defined _WIN32 || defined _WIN64 || defined WINCE || defined __CYGWIN__) && defined CVAPI_EXPORTS

What would be the proper way to correct this issue ?

Thx!

Bug Python binding x64 / Windows 7

Hi community,

I compiled OpenCV 2.4.9 on x64 / Windows 7, with Visual Studio 2012.

To use the python binding I copied cv2.pyd in the proper place on the python path, and then got the following error upon import :

>>> import cv2
Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
ImportError: dynamic module does not define init function (initcv2)

Here's what worked for me to correct the issue

In cv2.cpp I replaced:

extern "C" CV_EXPORTS void initcv2();

with:

extern "C" __declspec(dllexport) void initcv2();

Of course, this works only for Windows.

Here's what I hoped would work, but did not

~~trying~~ Trying to modify the definition of CV_EXPORTS: In cvdef.h, replace:

#if (defined WIN32 || defined _WIN32 || defined WINCE || defined __CYGWIN__) && defined CVAPI_EXPORTS

with:

#if (defined WIN32 || defined _WIN32 || defined _WIN64 || defined WINCE || defined __CYGWIN__) && defined CVAPI_EXPORTS

~~What~~ So, what would be the proper way to correct this issue ?

Thx!