c++ - OpenCV2.4.10 with Qt -
i have installed 32-bit qt , have 64 bit compiled binaries opencv2.4.10 (from source). have 2 questions: i built opencv libraries before installing qt. understand, more use qt style ui not necessary interface qt. should rebuild opencv? when tried 64-bit qt, didn't work because opencv compiled vs 2013 - 32-bit. moved on 32-bit qt, still gives me linker errors of form: mainwindow.obj : error lnk2019: unresolved external symbol "void __cdecl cv::fastfree(void *)" (?fastfree@cv@@yaxpax@z) referenced in function "public: __thiscall cv::mat::~mat(void)" (??1mat@cv@@qae@xz) added include path , libraries in .pro file. getting error because qt 32-bit , using 64-bit opencv? i need use 64-bit opencv. there way can qt interface opencv? or other way have gui c++/opencv? thanks, if think happens when press compile button realise why cannot have 2 different architecture sets libraries. when compile program in 32 bit coded in way 32 ( coincidently 64)...