How to install Geant4 using cmake 3.14.5 and visual studio 2017
step-1
Download Geant4 and extract in a folder like J:Geant4\geant4_10_05 (this is the source folder that contain geant4 source)
step-2
Now create one for build like J:\Geant4\geant4-build
step-3
switch to this build folder by cd geant4-build
step-4
cmake -DCMAKE_INSTALL_PREFIX=J:\Geant4\geant4_10_05-install J:\Geant4\geant4_10_05
step-4
Instead of running cmake command in step 4, you can run cmake-gui where you installed cmake, it will be in bin folder (J:\cmake-3.14.5-win64-x64\bin)

step-5
You can set any value like geant4 dataset and openGL library and QT as
(you must be in build folder like )
J:\Geant4\geant4-build cmake -DGEANT4_INSTALL_DATA=ON -DGEANT4_USE_OPENGL_WIN32=ON -DGEANT4_USE_QT=ON 

step-6
cmake --build . --config RelWithDebInfo   (this will install everything in your installed directory -DCMAKE_INSTALL_PREFIX)

step-7
download the data files if -DGEANT4_INSTALL_DATA=ON and set the environment variables 


How to run example


step-1

Make a directory where to keep the build files
mkdir b2_build
step-2

move into this new directory
cd b2_build

step-3

run the cmake command   ( cmake command, Geant4 installation path,  example/application path which needs to be build)
D:\GEANT\b2_b>cmake -DGeant4_DIR=d:\Geant4\lib\Geant4-G4VERSION d:\GEANT\B2

Now check the solution file  example.sln by typing

dir /B

step-4

now build solution by typing

cmake  --build . --config Release

step-5 
now your example.exe is ready in release folder
cd release
run example.exe from terminal  (you can run macro as  example.exe  ..\run1.mac)


preInit> /run/initialize