Input.GetMouseButtonDown(0.....6); - in documentation it says that you can pass, 0, 1, 2 as parameter. Input.GetMouseButtonDown. It doesn't accept negative numbers like -1 or numbers 7+. What does 3 4 5 6 do? What input are they calculating? Or can I use these numbers as default for None state? I couldn't find any information about this.


1 Answer 1


0 is the left mouse button, 1 is the right ,2 is the middle. The rest are there for mice with extra buttons. Like some gaming mice have buttons on the side. For example using this code :

void Update () {

and pressing my 4th mouse button I get true in the console.

  • \$\begingroup\$ Do you know if there is default mouse input like KeyCode.None? I don't want to check for numbers in my loop if that is not necessary. \$\endgroup\$ Mar 6, 2017 at 20:12
  • \$\begingroup\$ All I can think of is Input.anyKey. But the GetMouseButton method only accepts integers. \$\endgroup\$
    – Uri Popov
    Mar 6, 2017 at 20:17
  • \$\begingroup\$ Also, wanted to add for people who found this question - those who are using Event.current to get what key or mouse button was pressed - buttons 3, 4, aren't going to get any reaction. Event.current.isMouse = false when you press 3 and 4 at least on my mouse and I have no more buttons, so I could not check with 5 and 6. So this is not a way to bind those buttons inside the game by Event.current.button. For 0, 1, 2 it's working nice. \$\endgroup\$ Mar 7, 2017 at 8:01

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