Looking for the Nspire Lua API Reference Guide I happily googled "TI-Nspire scripting api pdf" and came across this:
http://www.sharinginspiration.org/contribs/contrib_1/part_A/Programming-with-TI-Nspire--final.pdf

While working on a project I found myself in need of detecting whether the mouse was clicked inside a certain area or not. I thought it would be pretty simple since I only needed square 'hitboxes'. I wrote some simple code and figured to share it in case it might be useful to others.

Hitbox code:
Code for the hitbox:
HitBoxSquare = class()
function HitBoxSquare:init(xIn, yIn, width, height)
     self.x = xIn
     self.y = yIn
     self.width = width
     self.height = height
end

function HitBoxSquare:contains(xMouse, yMouse)
    local sw = self.width
    local sh = self.height
    return (xMouse>=(self.x)) and xMouse<=(self.x+sw) and yMouse>=(self.y) and yMouse<=(self.y+sh)
endMandatory code:
To track mousepresses:
function on.mouseDown(x, y)
    mouseX = x
    mouseY = y
    --Other code here
endTo track mousemovement:
function on.mouseMove(x, y)
    mouseX = x
    mouseY = y
    --Other code here
end
How to use:
Create the hitbox:
hitBox = HitBoxSquare(x, y, width, height)Check if the mouse is clicked inside the hitbox:
if hitBox:contains(mouseX, mouseY) then
    --Do something here
end
Using multiple hitboxes:
If you want to use more then one hitbox, checking them by hand is a little too much work. Here's where tables come in handy!
-----------------------------------------------
-- Checking multiple hitboxes, the fast way. --
-- ElementCoder, 2012                        --
-----------------------------------------------
HitBoxSquare = class()
function HitBoxSquare:init(xIn, yIn, width, height)
     self.x = xIn
     self.y = yIn
     self.width = width
     self.height = height
end

function HitBoxSquare:contains(xMouse, yMouse)
    local sw = self.width
    local sh = self.height
    return (xMouse>=(self.x)) and xMouse<=(self.x+sw) and yMouse>=(self.y) and yMouse<=(self.y+sh)
end

hb1 = HitBoxSquare(10, 10, 10, 10)
hb2 = HitBoxSquare(10, 25, 10, 10)
hb3 = HitBoxSquare(10, 40, 10, 10)
hitbox = {hb1, hb2, hb3}
hitboxname = {"Hitbox 1", "Hitbox 2", "Hitbox 3"}

function on.paint(gc)
    gc:drawRect(10, 10, 10, 10)
    gc:drawRect(10, 25, 10, 10)
    gc:drawRect(10, 40, 10, 10)
end

function on.mouseMove(x, y)
    mouseX, mouseY = x, y
    for i = 1, 3 do
        if hitbox[i]:contains(mouseX, mouseY) then
            print(hitboxname[i].." contains the mouse!")
        end
    end
end

I'm working on a project with a lot of tabs and was wondering if is there a faster way then this (I'm pretty sure there is):
JTabbedPane tabPane = new JTabbedPane();

tabPane.add(panel1);
tabPane.add(panel2);
.....
tabPane.add(panelX);


I forgot to introduce myself   So here I am
I've developed quite some things for the TI-Nspire (BASIC) and now learning Lua for even better programs I'm also learning java atm and did some C++ sometime ago, in a far, distant world, where everything is hard.....
And I'm starting Astronomy this year.
Well that's about it.

[edit] I'm also a proud Minecraftian