property button

This property returns the value that tells which button was clicked or released. Valid values are:

• 1 - Maps to left mouse button
• 2 - Maps to right mouse button
• 3 - Maps to middle mouse button
• 4 - Maps to first X button
• 5 - Maps to second X button

<box on:mouseDown="onMouseDown();"/>

function onMouseDown()
{
    var eventObj = shell.currentEvent;
    if (eventObj)
    {
        if (eventObj.button == 1)
        {
            shell.print("left mouse button is down");
        }
        else if (eventObj.button == 2)
        {
            shell.print("right mouse button is down");
        }
    }
}