Shows how to create a timer with Fl::add_timeout, Fl::remove_timeout and Fl::repeat_timeout methods.
To build this project, open "Terminal" and type following lines:
mkdir build && cd build
cmake ..
start Timer.sln
Select Timer project and type Ctrl+F5 to build and run it.
mkdir build && cd build
cmake .. -G "Xcode"
open ./Timer.xcodeproj
Select Timer project and type Cmd+R to build and run it.
mkdir build && cd build
cmake ..
cmake --build . --config Debug
./Timer