Getting OpenCV to work with Visual C++ 2015 Build Tools

Who loves OpenCV, Windows & command line (Visual C++ 2015 Build Tools)? (raise my hand)

1. Hope that everyone is using 64-bit version of Windows, since for 32-bit version of Windows, there is no official OpenCV version that just work.
   
   If in doubt, go to Start Menu/Settings, select System, in left panel select About, at right panel shows your System type is 64-bit operating system, x64-based processor, then you are good.
    
2. Download & install Visual C++ Build Tools 2015
    
3. Download & extract OpenCV Win pack, say, to C:\opencv
    
4. Save following example code with filename you like, and extension cpp. Say, showimage.cpp at C:\showimage
   
   #include "opencv2/core.hpp"
   #include "opencv2/highgui.hpp"
   
   int main()
   {
       IplImage* img = cvLoadImage("orangeman.jpg");
       cvShowImage("Original", img);
       cvWaitKey(0);
       cvReleaseImage(&img);
       return 0;
   }
    
5. Copy these OpenCV files to where your code at, C:\showimage
    
   C:\opencv\build\x64\vc15\lib\opencv_world340.lib
   C:\opencv\build\x64\vc15\bin\opencv_world340.dll
   C:\opencv\build\include\opencv2
    
6. Go Start Menu/Visual C++ Build Tools, to use Visual C++ 2015 x64 Native Build Tools Command Prompt
    
7. Navigate to your code at C:\showimage with the command.
   
   cd C:\users\ME\showimage
    
8. Build .exe file from your code and the OpenCV files, with the command.
   
   cl showimage.cpp opencv_world340.lib
    
9. You get showimage.exe, click and see.