Shows how to create a simple window with Fl_Window.
To build this project, open "Terminal" and type following lines:
mkdir build && cd build
cmake ..
start Window.sln
Select Window project and type Ctrl+F5 to build and run it.
mkdir build && cd build
cmake .. -G "Xcode"
open ./Window.xcodeproj
Select Window project and type Cmd+R to build and run it.
mkdir build && cd build
cmake ..
cmake --build . --config Debug
./Window