Hello, sorry should have included that information.
Im using the Particle webide and a Photon.
I created a new clickButton.h file and copy pasted the .h code in to it,
then i also copy pasted the .cpp code in to the clickButton.cpp file.
I guess i need to make use of the #include command?
When i hit varify code i get that message.
I tried to include the clickButton.h to the .cpp file then i get other errors 
In file included from clickButton.cpp:2:0:
clickButton.h:8:25: error: expected ')' before 'buttonPin'
ClickButton(uint8_t buttonPin);
Note that im under process of learning so im not an advanced user 
Many thanx
Dimi