[vtkusers] Auto-initialisation of Object Factories on Win32

[Craig Henderson]

Hi, I have been searching for a way to enable Auto-initialisation of Object
Factories on Windows (MSVC), but without success. Most calls to
Object::New() are returning null pointers and stepping through the code I
can see the factory is missing.

 

To prove the case, I added this block to my code, and New() worked for
vtkRenderingOpenGL.

 

_declspec(dllimport) void vtkRenderingOpenGL_AutoInit_Construct();

vtkRenderingOpenGL_AutoInit_Construct();

 

I guess there's a simple compiler option when building VTK, but cannot find
it anywhere.

 

Thanks for your help

-- Craig

 

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