6

I am using a Dell Venue 8 Pro running Windows 8.1 32 bit. I am trying to use AutoHotkey to map certain regions of the screen to certain buttons on the keyboard, in order to be able to use the touch screen to control a certain pinball game that already exists. My goal is to press A if the left half of the screen is touched, and to press B for the right half (the screen resolution is set to 640x480). This is the script I wrote:

~LButton::
MouseGetPos, x,y
if (x > 0 and x < 320)
    Send {A}
if (x > 320 and x < 640)
    Send {B}
return

However, it doesn't seem to be recognizing touch screen presses at all. It seems as though touch screen presses are distinct from normal mouse clicks. How can I use AutoHotkey to recognize a touch screen press, or is there another solution for what I am trying to do?

Edit: I am starting to think that AutoHotkey is not capable of doing what I want to accomplish here. If anyone can find an alternative way that produces this same outcome (presses keyboard buttons when screen regions are touched), I will accept the answer.

2
  • The problem is that when you touch the screen, it registers a click at the current cursor position instead of at the location you tapped. Check your pointer-device drivers to find a setting that controls what mode it uses for taps. Look for something along the lines of “tap to click”, “absolute/relative position”, “mouse/screen mode”, etc. You can test the different modes to make sure you have the right one by opening MSPaint, setting it to the fattest brush size, then tapping different places to see if it dots wherever you touched or just the same spot, like clicking the mouse without moving. – Synetech Mar 27 '14 at 3:58
  • Also, try the AHKHID library which is meant to provide advanced input, and this script which attempts to accomplish exactly what you are hoping to do. – Synetech Mar 27 '14 at 4:09
3
+100

I'm not sure what language you're coding the game in... Normally, [ javascript ] , [ jquery ], and [ Webkit ] support touch events. But if that doesn't help, then you could try this script and alter it as per your convenience:

Quote from the creator of the script: [ link ]

I have an MID (Mobile Internet Device) called Viliv S5. It has resolution of 1024 x 768 for 4.8 inch screen. That means icons are to small to click with fingers. So I developed a script to convert touchscreen (absolute coordinate) to touchpad (relative coordinate).

This script hooks mouse down, hiding real cursors and showing fake cursors. When the finger is released, the mouse pointer is moved to the intended position and reveal the cursor.

Usage:

  1. Decompress the zip file in the relevant folder.

  2. Open Touchpad.ini and set cursor "speed" (0 ~ 1).

  3. Drag the screen and the cursor moves.

  4. Tap anywhere on the screen and click is sent.

  5. Double tapping is double click.

  6. "Ctrl + u" pause/restart the script.

  7. Click the tray icon and exit the script.

To do:

  1. Implement dragging.

  2. Sometimes cursors jump to my finger position.

  3. Sometimes cursors are hidden.

Download the zip file here: http://cafe.naver.com/flowpad/34 (I updated the above link.)

SCRIPT:

; AutoHotkey Version: 1.x
; Language:       English
; Platform:       Win9x/NT
; Author:         Seung-Young Noh <noh@socoop.net>


#SingleInstance force
#NoEnv  ; Recommended for performance and compatibility with future AutoHotkey releases.
SendMode Input  ; Recommended for new scripts due to its superior speed and reliability.
SetWorkingDir %A_ScriptDir%  ; Ensures a consistent starting directory.

Menu, Tray, NoStandard
Menu, Tray, Tip, Touchpad V0.7
Menu, Tray, Icon, 1.ico, , 1
Menu, Tray, add, Exit, MenuQuit
Menu, Tray, Default, Exit
Menu, Tray, Click, 1

#Persistent
CoordMode, Mouse, Screen

IniRead, Cursor_speed, Touchpad.ini, main, Cursor_speed
if not Cursor_speed
    Cursor_speed := 0.7

SystemCursor("I")
SetTimer, WatchCursor, 50
return

MenuQuit:
    ExitApp
return

LWin & u::
    Suspend
    SetTimer, WatchCursor, Off
    SetTimer, MovePointer, Off
    SystemCursor(1)

    if (A_IsSuspended = 1) {
        Menu, Tray, Icon, 2.ico
    } else {
        Menu, Tray, Icon, 1.ico
    }
return  

WatchCursor:
    MouseGetPos, x, y
    GetKeyState, state, LButton
    FromX := FromX1
    FromY := FromY1
    FromX1 := x
    FromY1 := y
return

StartWatchCursor:
    SetTimer, WatchCursor, On
return

LButton::
    SystemCursor(0)
    SetTimer, WatchCursor, Off

    ToX := FromX
    ToY := FromY

    SplashImage, C:\Windows\Cursors\arrow_r.cur, x%ToX% y%ToY% B

    MouseGetPos, thisX, thisY
    SetTimer, MovePointer, 100
return

LButton Up::
    SetTimer, MovePointer, Off

    MouseMove, %ToX%, %ToY%, 0
    SplashImage, Off
    if ((A_TimeSincePriorHotkey < 100) and (abs((ToX - FromY) * (ToY - FromY)) < 200)) {
        Click
    }
    FromX := ToX
    FromY := ToY

    SystemCursor(1)

    SetTimer, StartWatchCursor, -1000
return

MovePointer:
    MouseGetPos, x, y
    ToX := ToX + Round(Cursor_speed * (x - thisX))
    ToY := ToY + Round(Cursor_speed * (y - thisY))
    if (ToX <= 0) {
        ToX = 0
    } else if (ToX >= A_ScreenWidth) {
        ToX := A_ScreenWidth
    }
    if (ToY <= 0) {
        ToY = 0
    } else if (ToY >= A_ScreenHeight) {
        ToY := A_ScreenHeight
    }
    
    if (((x - thisX) != 0) or ((y - thisY) !=0)) {
        SplashImage, C:\Windows\Cursors\arrow_r.cur, x%ToX% y%ToY% B
    }
    thisX := x
    thisY := y
return

;; The script below is another's. I can't remember whose it is.

SystemCursor(OnOff=1)   ; INIT = "I","Init"; OFF = 0,"Off"; TOGGLE = -1,"T","Toggle"; ON = others
{
    static AndMask, XorMask, $, h_cursor
        ,c0,c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13 ; system cursors
        , b1,b2,b3,b4,b5,b6,b7,b8,b9,b10,b11,b12,b13   ; blank cursors
        , h1,h2,h3,h4,h5,h6,h7,h8,h9,h10,h11,h12,h13   ; handles of default cursors
    if (OnOff = "Init" or OnOff = "I" or $ = "")       ; init when requested or at first call
    {
        $ = h                                          ; active default cursors
        VarSetCapacity( h_cursor,4444, 1 )
        VarSetCapacity( AndMask, 32*4, 0xFF )
        VarSetCapacity( XorMask, 32*4, 0 )
        system_cursors = 32512,32513,32514,32515,32516,32642,32643,32644,32645,32646,32648,32649,32650
        StringSplit c, system_cursors, `,
        Loop %c0%
        {
            h_cursor   := DllCall( "LoadCursor", "uint",0, "uint",c%A_Index% )
            h%A_Index% := DllCall( "CopyImage",  "uint",h_cursor, "uint",2, "int",0, "int",0, "uint",0 )
            b%A_Index% := DllCall("CreateCursor","uint",0, "int",0, "int",0
                , "int",32, "int",32, "uint",&AndMask, "uint",&XorMask )
        }
    }
    if (OnOff = 0 or OnOff = "Off" or $ = "h" and (OnOff < 0 or OnOff = "Toggle" or OnOff = "T"))
        $ = b  ; use blank cursors
    else
        $ = h  ; use the saved cursors

    Loop %c0%
    {
        h_cursor := DllCall( "CopyImage", "uint",%$%%A_Index%, "uint",2, "int",0, "int",0, "uint",0 )
        DllCall( "SetSystemCursor", "uint",h_cursor, "uint",c%A_Index% )
    }
}

Hope this helps... I haven't tested the script.

2
  • Thank you for bringing this script to my attention. I'll have to give it a try and see if I can modify it to suit my needs. The pinball game is not a game I am coding, by the way. This is the reason why I need to use AutoHotkey. The game already exists and I am just trying to be able to use the touch screen to control it. – bdr9 Mar 26 '14 at 18:51
  • @bdr9: You have awarded the bounty, but you should also accept the answer. If I understand right, this script handles not only MouseGetPos but also button events, so maybe this is what solved your problem. I wonder why these mouse events weren't shown by Window Spy as I suggested. – harrymc Mar 30 '14 at 10:08
2

In the AutoHotkey Wish List thread multi finger touch gestures, the main AutoHotkey developer, lexikos, says this on Septembre 30, 2013 :

I don't have a Windows tablet or touch screen, or any interest in getting one or developing touch input features.

Apart from this, as far as I know Windows 8 does send mouse events for touch screens, although they will be delayed until Windows decides that they are not gestures.

This stackoverflow thread says :

I've noticed that Windows 7's touch screen interface has this thing where it will hold back mousedown events. Due to the "tap-and-hold right click" gesture, Windows 7 won't actually send the application a mouse down event until:

  • the user "touch ups" (raise their finger from a touch, at which point both down and up are sent)
  • moves their finger (at which point the click becomes a drag)
  • or the right click circle gesture times out (after about 5-6 seconds)

Your application will need to work with these limitations, especially that of MouseGetPos not working until the user lifts or moves his finger in a way that is obviously (to Windows) not a gesture.

In effect, MouseGetPos may not function very well on a touch screen.

8
  • Thanks for the answer. Do you know of any other program similar to AutoHotkey that can detect touch screen events (finger down, finger up, etc) independently of mouse events? – bdr9 Mar 24 '14 at 1:09
  • That would require interfacing to a new Windows API. AHK is not interested, but that doesn't mean that one cannot create a DLL to be called from it, but I am not aware of anyone having done that for AHK or its alternative AutoIt. The simplest solution would be to change your user interface to use clicks rather than moves, as that will always work. – harrymc Mar 24 '14 at 7:17
  • What exactly do you mean by changing the interface to use clicks rather than moves? Is this a setting in Windows 8? If so, where can I find it? – bdr9 Mar 24 '14 at 13:44
  • I meant changing your design, so that the user will touch/click the screen areas rather than move his finger around. You can intercept mouse-down or up events. – harrymc Mar 24 '14 at 14:02
  • 1
    That is what I am already trying to do. AutoHotkey is not recognizing single touches as mouse events. I am not moving my finger, just tapping the screen. – bdr9 Mar 24 '14 at 14:06
0

You can use a third party app to do this.

TouchMe Gesture Studio may be able to help, it will let you assign touchscreen gestures to hotkeys.

check out this ahk forum post

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