Hi all,

I'm writing some code in VS 2010 that creates a DLL. It compiles and works just fine, but I get several warnings of the following variety:

warning C4251: 'CTFormWrapperLib::pix_pts' : class 'Eigen::Matrix<_Scalar,_Rows,_Cols>' needs to have dll-interface to be used by clients of class 'CTFormWrapperLib'

I'm relatively new to both Eigen and Visual Studio. Does anyone have any idea what this might be?