Turn your numeric keypad into a mouse/full keyboard

Backstory - The touchscreen in my CarPC died (more on that later).  As such, I needed a quick replacement for control and a mouse was not a good option for the car.  I had a spare USB keypad and used AutoHotkey to emulate a mouse (when the numlock's off) and a cellphone-type keyboard (when the numlock's on).  This works fine on a standard keyboard as well (I used the mouse portion for my HTPC)


(more after the break)



Usage

Install AutoHotkey
Open Notepad
Paste code below
Save as {whatever}.ahk
run {whatever}.ahk
Tada



Functionality

The Numlock controls what mode you're in.
NumLock On = Typing Mode
NumLock Off = Mouse Mode

The typing method is the same as your cell phone (no predictive, just straight characters)

Layout For Typing Mode.
(might seem upsidedown, but it makes sense if you're used to a cell phone)

Timeout is set for 1 second so just tap away at the key until you see the character you're looking for.

NumLock = Mouse/Keyboard Toggle
/ = backspace
* = nothing currently
- = ScrollWheelUp
+ = ScrollWheelDown
Enter = Enter
7 = ( , ) , [ , ] , 1
8 = a , b , c , 2 , @
9 = d , e , f , 3 , #
4 = g , h , i , 4 , $
5 = j , k , l , 5 , %
6 = m , n , o , 6 , ^ 
1 = p , q , r , s , & 
2 = t , u , v , 8 , ~
3 = w , x , y , z , 9, '
0 = [Space] , 0
. = \ , . : ; ! ?

Layout For Mouse Mode.
There is acceleration built into this so it will speed up gradually as the mouse moves.

NumLock = Mouse/Keyboard Combo
/ = Back
* = Forward
- = ScrollWheelUp
+ = ScrollWheelDown
Enter = Enter
7 = MouseUpLeft
8 = MouseUp
9 = MouseUpRight
4 = MouseLeft
5 = Center Button Click
6 = MouseRight
1 = MouseDownLeft
2 = MouseDown
3 = MouseDownRight
0 = Left Button Click
. = Right Button Click
Enter = Enter





Code

setscrolllockstate=on
setnumlockstate=off

{
;START OF CONFIG SECTION

#SingleInstance force
#MaxHotkeysPerInterval 500
#UseHook

MouseSpeed = 3
MouseAccelerationSpeed = 3
MouseMaxSpeed = 7

MouseWheelSpeed = 1
MouseWheelAccelerationSpeed = 1
MouseWheelMaxSpeed = 5

MouseRotationAngle = 0

;END OF CONFIG SECTION

#InstallKeybdHook

Temp = 0
Temp2 = 0

MouseRotationAnglePart = %MouseRotationAngle%
;Divide by 45º because MouseMove only supports whole numbers,
;and changing the mouse rotation to a number lesser than 45º
;could make strange movements.
;
;For example: 22.5º when pressing NumPadUp:
;  First it would move upwards until the speed
;  to the side reaches 1.
MouseRotationAnglePart /= 45

MouseCurrentAccelerationSpeed = 0
MouseCurrentSpeed = %MouseSpeed%

MouseWheelCurrentAccelerationSpeed = 0
MouseWheelCurrentSpeed = %MouseSpeed%

SetKeyDelay, -1
SetMouseDelay, -1

Hotkey, *NumPad0, ButtonLeftClick
Hotkey, *NumpadIns, ButtonLeftClickIns
Hotkey, *NumPad5, ButtonMiddleClick
Hotkey, *NumpadClear, ButtonMiddleClickClear
Hotkey, *NumPadDot, ButtonRightClick
Hotkey, *NumPadDel, ButtonRightClickDel
Hotkey, *NumPadDiv, ButtonX1Click
Hotkey, *NumPadMult, ButtonX2Click

;Hotkey, *NumpadSub, ButtonWheelUp
;Hotkey, *NumpadAdd, ButtonWheelDown

Hotkey, *NumPadUp, ButtonUp
Hotkey, *NumPadDown, ButtonDown
Hotkey, *NumPadLeft, ButtonLeft
Hotkey, *NumPadRight, ButtonRight
Hotkey, *NumPadHome, ButtonUpLeft
Hotkey, *NumPadEnd, ButtonUpRight
Hotkey, *NumPadPgUp, ButtonDownLeft
Hotkey, *NumPadPgDn, ButtonDownRight


;Key activation support


    Hotkey, *NumPad0, on
    Hotkey, *NumpadIns, on
    Hotkey, *NumPad5, on
    Hotkey, *NumPadDot, on
    Hotkey, *NumPadDel, on
    Hotkey, *NumPadDiv, on
    Hotkey, *NumPadMult, on

;    Hotkey, *NumpadSub, on
;    Hotkey, *NumpadAdd, on

    Hotkey, *NumPadUp, on
    Hotkey, *NumPadDown, on
    Hotkey, *NumPadLeft, on
    Hotkey, *NumPadRight, on
    Hotkey, *NumPadHome, on
    Hotkey, *NumPadEnd, on
    Hotkey, *NumPadPgUp, on
    Hotkey, *NumPadPgDn, on




;Mouse click support

ButtonLeftClick:
GetKeyState, already_down_state, LButton
If already_down_state = D
    return
Button2 = NumPad0
ButtonClick = Left
Goto ButtonClickStart
ButtonLeftClickIns:
GetKeyState, already_down_state, LButton
If already_down_state = D
    return
Button2 = NumPadIns
ButtonClick = Left
Goto ButtonClickStart

ButtonMiddleClick:
GetKeyState, already_down_state, MButton
If already_down_state = D
    return
Button2 = NumPad5
ButtonClick = Middle
Goto ButtonClickStart
ButtonMiddleClickClear:
GetKeyState, already_down_state, MButton
If already_down_state = D
    return
Button2 = NumPadClear
ButtonClick = Middle
Goto ButtonClickStart

ButtonRightClick:
GetKeyState, already_down_state, RButton
If already_down_state = D
    return
Button2 = NumPadDot
ButtonClick = Right
Goto ButtonClickStart
ButtonRightClickDel:
GetKeyState, already_down_state, RButton
If already_down_state = D
    return
Button2 = NumPadDel
ButtonClick = Right
Goto ButtonClickStart

ButtonX1Click:
GetKeyState, already_down_state, XButton1
If already_down_state = D
    return
Button2 = NumPadDiv
ButtonClick = X1
Goto ButtonClickStart

ButtonX2Click:
GetKeyState, already_down_state, XButton2
If already_down_state = D
    return
Button2 = NumPadMult
ButtonClick = X2
Goto ButtonClickStart

ButtonClickStart:
MouseClick, %ButtonClick%,,, 1, 0, D
SetTimer, ButtonClickEnd, 10
return

ButtonClickEnd:
GetKeyState, kclickstate, %Button2%, P
if kclickstate = D
    return

SetTimer, ButtonClickEnd, off
MouseClick, %ButtonClick%,,, 1, 0, U
return

;Mouse movement support

ButtonSpeedUp:
MouseSpeed++
ToolTip, Mouse speed: %MouseSpeed% pixels
SetTimer, RemoveToolTip, 1000
return
ButtonSpeedDown:
If MouseSpeed > 1
    MouseSpeed--
If MouseSpeed = 1
    ToolTip, Mouse speed: %MouseSpeed% pixel
else
    ToolTip, Mouse speed: %MouseSpeed% pixels
SetTimer, RemoveToolTip, 1000
return
ButtonAccelerationSpeedUp:
MouseAccelerationSpeed++
ToolTip, Mouse acceleration speed: %MouseAccelerationSpeed% pixels
SetTimer, RemoveToolTip, 1000
return
ButtonAccelerationSpeedDown:
If MouseAccelerationSpeed > 1
    MouseAccelerationSpeed--
If MouseAccelerationSpeed = 1
    ToolTip, Mouse acceleration speed: %MouseAccelerationSpeed% pixel
else
    ToolTip, Mouse acceleration speed: %MouseAccelerationSpeed% pixels
SetTimer, RemoveToolTip, 1000
return

ButtonMaxSpeedUp:
MouseMaxSpeed++
ToolTip, Mouse maximum speed: %MouseMaxSpeed% pixels
SetTimer, RemoveToolTip, 1000
return
ButtonMaxSpeedDown:
If MouseMaxSpeed > 1
    MouseMaxSpeed--
If MouseMaxSpeed = 1
    ToolTip, Mouse maximum speed: %MouseMaxSpeed% pixel
else
    ToolTip, Mouse maximum speed: %MouseMaxSpeed% pixels
SetTimer, RemoveToolTip, 1000
return

ButtonRotationAngleUp:
MouseRotationAnglePart++
If MouseRotationAnglePart >= 8
    MouseRotationAnglePart = 0
MouseRotationAngle = %MouseRotationAnglePart%
MouseRotationAngle *= 45
ToolTip, Mouse rotation angle: %MouseRotationAngle%°
SetTimer, RemoveToolTip, 1000
return
ButtonRotationAngleDown:
MouseRotationAnglePart--
If MouseRotationAnglePart < 0
    MouseRotationAnglePart = 7
MouseRotationAngle = %MouseRotationAnglePart%
MouseRotationAngle *= 45
ToolTip, Mouse rotation angle: %MouseRotationAngle%°
SetTimer, RemoveToolTip, 1000
return

ButtonUp:
ButtonDown:
ButtonLeft:
ButtonRight:
ButtonUpLeft:
ButtonUpRight:
ButtonDownLeft:
ButtonDownRight:
If Button <> 0
{
    IfNotInString, A_ThisHotkey, %Button%
    {
        MouseCurrentAccelerationSpeed = 0
        MouseCurrentSpeed = %MouseSpeed%
    }
}
StringReplace, Button, A_ThisHotkey, *

ButtonAccelerationStart:
If MouseAccelerationSpeed >= 1
{
    If MouseMaxSpeed > %MouseCurrentSpeed%
    {
        Temp = 0.001
        Temp *= %MouseAccelerationSpeed%
        MouseCurrentAccelerationSpeed += %Temp%
        MouseCurrentSpeed += %MouseCurrentAccelerationSpeed%
    }
}

;MouseRotationAngle convertion to speed of button direction
{
    MouseCurrentSpeedToDirection = %MouseRotationAngle%
    MouseCurrentSpeedToDirection /= 90.0
    Temp = %MouseCurrentSpeedToDirection%

    if Temp >= 0
    {
        if Temp < 1
        {
            MouseCurrentSpeedToDirection = 1
            MouseCurrentSpeedToDirection -= %Temp%
            Goto EndMouseCurrentSpeedToDirectionCalculation
        }
    }
    if Temp >= 1
    {
        if Temp < 2
        {
            MouseCurrentSpeedToDirection = 0
            Temp -= 1
            MouseCurrentSpeedToDirection -= %Temp%
            Goto EndMouseCurrentSpeedToDirectionCalculation
        }
    }
    if Temp >= 2
    {
        if Temp < 3
        {
            MouseCurrentSpeedToDirection = -1
            Temp -= 2
            MouseCurrentSpeedToDirection += %Temp%
            Goto EndMouseCurrentSpeedToDirectionCalculation
        }
    }
    if Temp >= 3
    {
        if Temp < 4
        {
            MouseCurrentSpeedToDirection = 0
            Temp -= 3
            MouseCurrentSpeedToDirection += %Temp%
            Goto EndMouseCurrentSpeedToDirectionCalculation
        }
    }
}
EndMouseCurrentSpeedToDirectionCalculation:

;MouseRotationAngle convertion to speed of 90 degrees to right
{
    MouseCurrentSpeedToSide = %MouseRotationAngle%
    MouseCurrentSpeedToSide /= 90.0
    Temp = %MouseCurrentSpeedToSide%
    Transform, Temp, mod, %Temp%, 4

    if Temp >= 0
    {
        if Temp < 1
        {
            MouseCurrentSpeedToSide = 0
            MouseCurrentSpeedToSide += %Temp%
            Goto EndMouseCurrentSpeedToSideCalculation
        }
    }
    if Temp >= 1
    {
        if Temp < 2
        {
            MouseCurrentSpeedToSide = 1
            Temp -= 1
            MouseCurrentSpeedToSide -= %Temp%
            Goto EndMouseCurrentSpeedToSideCalculation
        }
    }
    if Temp >= 2
    {
        if Temp < 3
        {
            MouseCurrentSpeedToSide = 0
            Temp -= 2
            MouseCurrentSpeedToSide -= %Temp%
            Goto EndMouseCurrentSpeedToSideCalculation
        }
    }
    if Temp >= 3
    {
        if Temp < 4
        {
            MouseCurrentSpeedToSide = -1
            Temp -= 3
            MouseCurrentSpeedToSide += %Temp%
            Goto EndMouseCurrentSpeedToSideCalculation
        }
    }
}
EndMouseCurrentSpeedToSideCalculation:

MouseCurrentSpeedToDirection *= %MouseCurrentSpeed%
MouseCurrentSpeedToSide *= %MouseCurrentSpeed%

Temp = %MouseRotationAnglePart%
Transform, Temp, Mod, %Temp%, 2

If Button = NumPadUp
{
    if Temp = 1
    {
        MouseCurrentSpeedToSide *= 2
        MouseCurrentSpeedToDirection *= 2
    }

    MouseCurrentSpeedToDirection *= -1
    MouseMove, %MouseCurrentSpeedToSide%, %MouseCurrentSpeedToDirection%, 0, R
}
else if Button = NumPadDown
{
    if Temp = 1
    {
        MouseCurrentSpeedToSide *= 2
        MouseCurrentSpeedToDirection *= 2
    }

    MouseCurrentSpeedToSide *= -1
    MouseMove, %MouseCurrentSpeedToSide%, %MouseCurrentSpeedToDirection%, 0, R
}
else if Button = NumPadLeft
{
    if Temp = 1
    {
        MouseCurrentSpeedToSide *= 2
        MouseCurrentSpeedToDirection *= 2
    }

    MouseCurrentSpeedToSide *= -1
    MouseCurrentSpeedToDirection *= -1

    MouseMove, %MouseCurrentSpeedToDirection%, %MouseCurrentSpeedToSide%, 0, R
}
else if Button = NumPadRight
{
    if Temp = 1
    {
        MouseCurrentSpeedToSide *= 2
        MouseCurrentSpeedToDirection *= 2
    }

    MouseMove, %MouseCurrentSpeedToDirection%, %MouseCurrentSpeedToSide%, 0, R
}
else if Button = NumPadHome
{
    Temp = %MouseCurrentSpeedToDirection%
    Temp -= %MouseCurrentSpeedToSide%
    Temp *= -1
    Temp2 = %MouseCurrentSpeedToDirection%
    Temp2 += %MouseCurrentSpeedToSide%
    Temp2 *= -1
    MouseMove, %Temp%, %Temp2%, 0, R
}
else if Button = NumPadPgUp
{
    Temp = %MouseCurrentSpeedToDirection%
    Temp += %MouseCurrentSpeedToSide%
    Temp2 = %MouseCurrentSpeedToDirection%
    Temp2 -= %MouseCurrentSpeedToSide%
    Temp2 *= -1
    MouseMove, %Temp%, %Temp2%, 0, R
}
else if Button = NumPadEnd
{
    Temp = %MouseCurrentSpeedToDirection%
    Temp += %MouseCurrentSpeedToSide%
    Temp *= -1
    Temp2 = %MouseCurrentSpeedToDirection%
    Temp2 -= %MouseCurrentSpeedToSide%
    MouseMove, %Temp%, %Temp2%, 0, R
}
else if Button = NumPadPgDn
{
    Temp = %MouseCurrentSpeedToDirection%
    Temp -= %MouseCurrentSpeedToSide%
    Temp2 *= -1
    Temp2 = %MouseCurrentSpeedToDirection%
    Temp2 += %MouseCurrentSpeedToSide%
    MouseMove, %Temp%, %Temp2%, 0, R
}

SetTimer, ButtonAccelerationEnd, 10
return

ButtonAccelerationEnd:
GetKeyState, kstate, %Button%, P
if kstate = D
    Goto ButtonAccelerationStart

SetTimer, ButtonAccelerationEnd, off
MouseCurrentAccelerationSpeed = 0
MouseCurrentSpeed = %MouseSpeed%
Button = 0
return

;Mouse wheel movement support

ButtonWheelSpeedUp:
MouseWheelSpeed++
RegRead, MouseWheelSpeedMultiplier, HKCU, Control Panel\Desktop, WheelScrollLines
If MouseWheelSpeedMultiplier <= 0
    MouseWheelSpeedMultiplier = 1
MouseWheelSpeedReal = %MouseWheelSpeed%
MouseWheelSpeedReal *= %MouseWheelSpeedMultiplier%
ToolTip, Mouse wheel speed: %MouseWheelSpeedReal% lines
SetTimer, RemoveToolTip, 1000
return
ButtonWheelSpeedDown:
RegRead, MouseWheelSpeedMultiplier, HKCU, Control Panel\Desktop, WheelScrollLines
If MouseWheelSpeedMultiplier <= 0
    MouseWheelSpeedMultiplier = 1
If MouseWheelSpeedReal > %MouseWheelSpeedMultiplier%
{
    MouseWheelSpeed--
    MouseWheelSpeedReal = %MouseWheelSpeed%
    MouseWheelSpeedReal *= %MouseWheelSpeedMultiplier%
}
If MouseWheelSpeedReal = 1
    ToolTip, Mouse wheel speed: %MouseWheelSpeedReal% line
else
    ToolTip, Mouse wheel speed: %MouseWheelSpeedReal% lines
SetTimer, RemoveToolTip, 1000
return

ButtonWheelAccelerationSpeedUp:
MouseWheelAccelerationSpeed++
RegRead, MouseWheelSpeedMultiplier, HKCU, Control Panel\Desktop, WheelScrollLines
If MouseWheelSpeedMultiplier <= 0
    MouseWheelSpeedMultiplier = 1
MouseWheelAccelerationSpeedReal = %MouseWheelAccelerationSpeed%
MouseWheelAccelerationSpeedReal *= %MouseWheelSpeedMultiplier%
ToolTip, Mouse wheel acceleration speed: %MouseWheelAccelerationSpeedReal% lines
SetTimer, RemoveToolTip, 1000
return
ButtonWheelAccelerationSpeedDown:
RegRead, MouseWheelSpeedMultiplier, HKCU, Control Panel\Desktop, WheelScrollLines
If MouseWheelSpeedMultiplier <= 0
    MouseWheelSpeedMultiplier = 1
If MouseWheelAccelerationSpeed > 1
{
    MouseWheelAccelerationSpeed--
    MouseWheelAccelerationSpeedReal = %MouseWheelAccelerationSpeed%
    MouseWheelAccelerationSpeedReal *= %MouseWheelSpeedMultiplier%
}
If MouseWheelAccelerationSpeedReal = 1
    ToolTip, Mouse wheel acceleration speed: %MouseWheelAccelerationSpeedReal% line
else
    ToolTip, Mouse wheel acceleration speed: %MouseWheelAccelerationSpeedReal% lines
SetTimer, RemoveToolTip, 1000
return

ButtonWheelMaxSpeedUp:
MouseWheelMaxSpeed++
RegRead, MouseWheelSpeedMultiplier, HKCU, Control Panel\Desktop, WheelScrollLines
If MouseWheelSpeedMultiplier <= 0
    MouseWheelSpeedMultiplier = 1
MouseWheelMaxSpeedReal = %MouseWheelMaxSpeed%
MouseWheelMaxSpeedReal *= %MouseWheelSpeedMultiplier%
ToolTip, Mouse wheel maximum speed: %MouseWheelMaxSpeedReal% lines
SetTimer, RemoveToolTip, 1000
return
ButtonWheelMaxSpeedDown:
RegRead, MouseWheelSpeedMultiplier, HKCU, Control Panel\Desktop, WheelScrollLines
If MouseWheelSpeedMultiplier <= 0
    MouseWheelSpeedMultiplier = 1
If MouseWheelMaxSpeed > 1
{
    MouseWheelMaxSpeed--
    MouseWheelMaxSpeedReal = %MouseWheelMaxSpeed%
    MouseWheelMaxSpeedReal *= %MouseWheelSpeedMultiplier%
}
If MouseWheelMaxSpeedReal = 1
    ToolTip, Mouse wheel maximum speed: %MouseWheelMaxSpeedReal% line
else
    ToolTip, Mouse wheel maximum speed: %MouseWheelMaxSpeedReal% lines
SetTimer, RemoveToolTip, 1000
return

ButtonWheelUp:
ButtonWheelDown:

If Button <> 0
{
    If Button <> %A_ThisHotkey%
    {
        MouseWheelCurrentAccelerationSpeed = 0
        MouseWheelCurrentSpeed = %MouseWheelSpeed%
    }
}
StringReplace, Button, A_ThisHotkey, *

ButtonWheelAccelerationStart:
If MouseWheelAccelerationSpeed >= 1
{
    If MouseWheelMaxSpeed > %MouseWheelCurrentSpeed%
    {
        Temp = 0.001
        Temp *= %MouseWheelAccelerationSpeed%
        MouseWheelCurrentAccelerationSpeed += %Temp%
        MouseWheelCurrentSpeed += %MouseWheelCurrentAccelerationSpeed%
    }
}

;If Button = NumPadSub
;    MouseClick, wheelup,,, %MouseWheelCurrentSpeed%, 0, D
;else if Button = NumPadAdd
;    MouseClick, wheeldown,,, %MouseWheelCurrentSpeed%, 0, D

SetTimer, ButtonWheelAccelerationEnd, 100
return

ButtonWheelAccelerationEnd:
GetKeyState, kstate, %Button%, P
if kstate = D
    Goto ButtonWheelAccelerationStart

MouseWheelCurrentAccelerationSpeed = 0
MouseWheelCurrentSpeed = %MouseWheelSpeed%
Button = 0
return

RemoveToolTip:
SetTimer, RemoveToolTip, Off
ToolTip
return


}

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;


;Typing Keys
{
Mods = ^!+#

Numpad7::KeyBD("()[]7")
Numpad8::KeyBD("ABC8@")
Numpad9::KeyBD("DEF9#")
Numpad4::KeyBD("GHI4$")
Numpad5::KeyBD("JKL5%")
Numpad6::KeyBD("MNO6^")
Numpad1::KeyBD("PQRS1&")
Numpad2::KeyBD("TUV2~")
Numpad3::KeyBD("WXYZ3'")
Numpad0::KeyBD(" 0")
Numpaddot::KeyBD("\,.:;!?")


NumpadDiv::          ; BackSpace
   IfEqual Mod,, Send {BackSpace}
   Else {
      IfEqual c,, StringTrimRight Mod, Mod, 1
      Else c =
      ModTip(Mod,c)
   }
Return

$NumpadEnter::       ; Enter /  Execute commnad
   IfEqual Mod,, Send {Enter}
   Else {
      Send %Mod%%c%
      Mod =          ; Exit cmd mode
      TrayTip
   }
Return

KeyBD(list)
{
   Static i          ; index of the character in the list, to be sent
   Global Caps, Mod, c
   If (A_ThisHotKey = A_PriorHotKey and A_TimeSincePriorHotkey < 1000)
   {
      IfEqual Mod,,Send {BS} ; erase the char this key has inserted
      i++            ; index of next char, wrapped around
      IfGreater i,% StrLen(list), SetEnv i,1
   }
   Else i = 1        ; at new key send first char from list
   StringMid c, list, i, 1
   IfEqual Mod,, {
      IfEqual Caps,1, StringUpper c,c
      Else            StringLower c,c
      SendRaw %c%    ; send selected
   }
   Else {
      StringLower c,c
      ModTip(Mod,c)
   }
}


}

ModTip(s,c)
{
   StringReplace s, s, ^, Ctrl-, All
   StringReplace s, s, !, Alt-,  All
   StringReplace s, s, +, Shift-,All
   StringReplace s, s, #, Win-,  All
   TrayTip,,Cmd = %s%%c%
}

~Numlock::  ; detect NumLock without blocking it (~)
    if (GetKeyState("NumLock", "T"))  ; get the toggle-state of NumLock
        MsgBox,,,Typing Mode,1
    else
        MsgBox,,,Mouse Mode,1
    return