Using Keyboard Numpad as a Mouse -- by deguix

From Auto Hotkey

Using Keyboard Numpad as a Mouse -- by deguix

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".

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/*
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 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"

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"
if GetKeyState("ScrollLock", "T")
{
    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:
if GetKeyState("LButton")
    return
Button2 := "Numpad0"
ButtonClick := "Left"
Goto ButtonClickStart
ButtonLeftClickIns:
if GetKeyState("LButton")
    return
Button2 := "NumpadIns"
ButtonClick := "Left"
Goto ButtonClickStart

ButtonMiddleClick:
if GetKeyState("MButton")
    return
Button2 := "Numpad5"
ButtonClick := "Middle"
Goto ButtonClickStart
ButtonMiddleClickClear:
if GetKeyState("MButton")
    return
Button2 := "NumpadClear"
ButtonClick := "Middle"
Goto ButtonClickStart

ButtonRightClick:
if GetKeyState("RButton")
    return
Button2 := "NumpadDot"
ButtonClick := "Right"
Goto ButtonClickStart
ButtonRightClickDel:
if GetKeyState("RButton")
    return
Button2 := "NumpadDel"
ButtonClick := "Right"
Goto ButtonClickStart

ButtonX1Click:
if GetKeyState("XButton1")
    return
Button2 := "NumpadDiv"
ButtonClick := "X1"
Goto ButtonClickStart

ButtonX2Click:
if GetKeyState("XButton2")
    return
Button2 := "NumpadMult"
ButtonClick := "X2"
Goto ButtonClickStart

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

ButtonClickEnd:
if GetKeyState(Button2, "P")
    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
    }
}
Button := StrReplace(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:
if GetKeyState(Button, "P")
    Goto ButtonAccelerationStart

SetTimer , "Off"
MouseCurrentAccelerationSpeed := 0
MouseCurrentSpeed := MouseSpeed
Button := 0
return

;Mouse wheel movement support

ButtonWheelSpeedUp:
MouseWheelSpeed++
MouseWheelSpeedMultiplier := RegRead("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:
MouseWheelSpeedMultiplier := RegRead("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++
MouseWheelSpeedMultiplier := RegRead("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:
MouseWheelSpeedMultiplier := RegRead("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++
MouseWheelSpeedMultiplier := RegRead("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:
MouseWheelSpeedMultiplier := RegRead("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
    }
}
Button := StrReplace(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:
if GetKeyState(Button, "P")
    Goto ButtonWheelAccelerationStart

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

RemoveToolTip:
SetTimer , "Off"
ToolTip
return