how to install opencv c++ on windows vscode code example

Example: how to install opencv c++ on windows vscode

OS: Windows 10 64-bit
Compiler: Mingw-w64 (Specifically, x86_64-8.1.0-posix-seh-rt_v6-rev0)
Compiler binaries' path: C:\\mingw-w64\\x86_64-8.1.0-posix-seh-rt_v6-rev0\\mingw64\\bin
OpenCV version: 4.1.1
OpenCV binaries' path: C:\\opencv\\OpenCV-MinGW-Build-OpenCV-4.1.1-x64\\x64\\mingw\\bin