; Using Keyboard Numpad as a Mouse -- by deguix
; http://www.autohotkey.com
; This script makes mousing with your keyboard almost as easy
; as using a real mouse (maybe even easier for some tasks).
; It supports up to five mouse buttons and the turning of the
; mouse wheel.  It also features customizable movement speed,
; acceleration, and "axis inversion".

/*
o------------------------------------------------------------o
|Using Keyboard Numpad as a Mouse                            |
(------------------------------------------------------------)
| By deguix           / A Script file for AutoHotkey         |
|                    ----------------------------------------|
|                                                            |
|    This script is an example of use of AutoHotkey. It uses |
| the remapping of numpad keys of a keyboard to transform it |
| into a mouse. Some features are the acceleration which     |
| enables you to increase the mouse movement when holding    |
| a key for a long time, and the rotation which makes the    |
| numpad mouse to "turn". I.e. NumPadDown as NumPadUp        |
| and vice-versa. See the list of keys used below:           |
|                                                            |
|------------------------------------------------------------|
| Keys                  | Description                        |
|------------------------------------------------------------|
| ScrollLock (toggle on)| Activates numpad mouse mode.       |
|-----------------------|------------------------------------|
| NumPad0               | Left mouse button click.           |
| NumPad5               | Middle mouse button click.         |
| NumPadDot             | Right mouse button click.          |
| NumPadDiv/NumPadMult  | X1/X2 mouse button click.          |
| NumPadSub/NumPadAdd   | Moves up/down the mouse wheel.     |
|                       |                                    |
|-----------------------|------------------------------------|
| NumLock (toggled off) | Activates mouse movement mode.     |
|-----------------------|------------------------------------|
| NumPadEnd/Down/PgDn/  | Mouse movement.                    |
| /Left/Right/Home/Up/  |                                    |
| /PgUp                 |                                    |
|                       |                                    |
|-----------------------|------------------------------------|
| NumLock (toggled on)  | Activates mouse speed adj. mode.   |
|-----------------------|------------------------------------|
| NumPad7/NumPad1       | Inc./dec. acceleration per         |
|                       | button press.                      |
| NumPad8/NumPad2       | Inc./dec. initial speed per        |
|                       | button press.                      |
| NumPad9/NumPad3       | Inc./dec. maximum speed per        |
|                       | button press.                      |
| ^NumPad7/^NumPad1     | Inc./dec. wheel acceleration per   |
|                       | button press*.                     |
| ^NumPad8/^NumPad2     | Inc./dec. wheel initial speed per  |
|                       | button press*.                     |
| ^NumPad9/^NumPad3     | Inc./dec. wheel maximum speed per  |
|                       | button press*.                     |
| NumPad4/NumPad6       | Inc./dec. rotation angle to        |
|                       | right in degrees. (i.e. 180°=      |
|                       | = inversed controls).              |
|------------------------------------------------------------|
| * = These options are affected by the mouse wheel speed    |
| adjusted on Control Panel. If you don't have a mouse with  |
| wheel, the default is 3 +/- lines per option button press. |
o------------------------------------------------------------o
*/

;START OF CONFIG SECTION

#SingleInstance
#MaxHotkeysPerInterval 500

; Using the keyboard hook to implement the Numpad hotkeys prevents
; them from interfering with the generation of ANSI characters such
; as à.  This is because AutoHotkey generates such characters
; by holding down ALT and sending a series of Numpad keystrokes.
; Hook hotkeys are smart enough to ignore such keystrokes.
#UseHook

MouseSpeed := 1
MouseAccelerationSpeed := 1
MouseMaxSpeed := 5

;Mouse wheel speed is also set on Control Panel. As that
;will affect the normal mouse behavior, the real speed of
;these three below are times the normal mouse wheel speed.
MouseWheelSpeed := 1
MouseWheelAccelerationSpeed := 1
MouseWheelMaxSpeed := 5

MouseRotationAngle := 0

;END OF CONFIG SECTION

;This is needed or key presses would faulty send their natural
;actions. Like NumPadDiv would send sometimes "/" to the
;screen.
#InstallKeybdHook

Temp := 0
Temp2 := 0

MouseRotationAnglePart := MouseRotationAngle
;Divide by 45° because MouseMove only supports whole numbers,
;and changing the mouse rotation to a number lesser than 45°
;could make strange movements.
;
;For example: 22.5° 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

Hotkey, Numpad8, ButtonSpeedUp
Hotkey, Numpad2, ButtonSpeedDown
Hotkey, Numpad7, ButtonAccelerationSpeedUp
Hotkey, Numpad1, ButtonAccelerationSpeedDown
Hotkey, Numpad9, ButtonMaxSpeedUp
Hotkey, Numpad3, ButtonMaxSpeedDown

Hotkey, Numpad6, ButtonRotationAngleUp
Hotkey, Numpad4, ButtonRotationAngleDown

Hotkey, !Numpad8, ButtonWheelSpeedUp
Hotkey, !Numpad2, ButtonWheelSpeedDown
Hotkey, !Numpad7, ButtonWheelAccelerationSpeedUp
Hotkey, !Numpad1, ButtonWheelAccelerationSpeedDown
Hotkey, !Numpad9, ButtonWheelMaxSpeedUp
Hotkey, !Numpad3, ButtonWheelMaxSpeedDown

Gosub, ~ScrollLock  ; Initialize based on current ScrollLock state.
return

;Key activation support

~ScrollLock::
; Wait for it to be released because otherwise the hook state gets reset
; while the key is down, which causes the up-event to get suppressed,
; which in turn prevents toggling of the ScrollLock state/light:
KeyWait, ScrollLock
GetKeyState, ScrollLockState, ScrollLock, T
If ScrollLockState
{
	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

	Hotkey, Numpad8, on
	Hotkey, Numpad2, on
	Hotkey, Numpad7, on
	Hotkey, Numpad1, on
	Hotkey, Numpad9, on
	Hotkey, Numpad3, on

	Hotkey, Numpad6, on
	Hotkey, Numpad4, on

	Hotkey, !Numpad8, on
	Hotkey, !Numpad2, on
	Hotkey, !Numpad7, on
	Hotkey, !Numpad1, on
	Hotkey, !Numpad9, on
	Hotkey, !Numpad3, on
}
else
{
	Hotkey, *NumPad0, off
	Hotkey, *NumpadIns, off
	Hotkey, *NumPad5, off
	Hotkey, *NumPadDot, off
	Hotkey, *NumPadDel, off
	Hotkey, *NumPadDiv, off
	Hotkey, *NumPadMult, off

	Hotkey, *NumpadSub, off
	Hotkey, *NumpadAdd, off

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

	Hotkey, Numpad8, off
	Hotkey, Numpad2, off
	Hotkey, Numpad7, off
	Hotkey, Numpad1, off
	Hotkey, Numpad9, off
	Hotkey, Numpad3, off

	Hotkey, Numpad6, off
	Hotkey, Numpad4, off

	Hotkey, !Numpad8, off
	Hotkey, !Numpad2, off
	Hotkey, !Numpad7, off
	Hotkey, !Numpad1, off
	Hotkey, !Numpad9, off
	Hotkey, !Numpad3, off
}
return

;Mouse click support

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

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

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

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

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

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

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

SetTimer,, 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
{
	if !InStr(A_ThisHotkey, Button)
	{
		MouseCurrentAccelerationSpeed := 0
		MouseCurrentSpeed := MouseSpeed
	}
}
StrReplace, 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 := Mod(MouseCurrentSpeedToSide, 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 := Mod(MouseRotationAnglePart, 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
	Goto ButtonAccelerationStart

SetTimer,, 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
	}
}
StrReplace, 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
	Goto ButtonWheelAccelerationStart

MouseWheelCurrentAccelerationSpeed := 0
MouseWheelCurrentSpeed := MouseWheelSpeed
Button := 0
return

RemoveToolTip:
SetTimer,, Off
ToolTip
return