Count the times displayAddEventHandler gets triggered?

[JacobJ 10]

Hello all

Atm I have this code and it works to load the script:

disableSerialization;

keyspressed = compile preprocessFile "wirecutter.sqf";
display = (findDisplay 46) displayAddEventHandler ["MouseButtonDown", "_this call keyspressed"];

How do I make a counter that counts the number of times the player pushes the mousebutton?

/Jacob