Phantom touches to the touch screen

[newbieforever]

My notebook touch screen seems to be damaged (no software cause found so far), it produces ghost touches randomly on a vertical line (at x = 999). I don't know what is the exact nature of these touches (i.e. are they analogous to LButton clicks, RButton clicks...).

I am trying to block these ghost touches by an AHK workaround. This is my test script (EDITED Aug. 22):

Code: Select all

GUI, +AlwaysOnTop -Border -SysMenu +Owner -Caption +ToolWindow -DPIScale
GUI, Color, red
GUI, Show, NoActivate X990 Y0 w20 h25, GUI 
; Just to see where the blocked area is.

#If BlockedTap()
LButton::return
#If

BlockedTap() {
	cm := A_CoordModeMouse
	CoordMode, Mouse, Screen
	MouseGetPos, x, y
	CoordMode, Mouse, % cm
	If (x>=990) && (x<=1010) {
		;FileAppend, %A_Hour%:%A_Min%: %x% %y%`r`n, %A_ScriptDir%\LogFile.txt
		;SoundBeep
		return 1
		}
	Else return 0
}

The script blocks mouse clicks, but not touchscreen taps.

Does anyone here have a brilliant idea on how to solve this problem?

(EDITED Aug. 22).

[mikeyww]

I'm not an expert in this, but it seems to me that if your hardware is broken, your software might not be able to overcome it.

[newbieforever]

Is there no alternative method to block clicks (screen touches)?

[newbieforever]

Perhaps the following might be of interest:

A touchscreen tap in the blocked area does not behave exactly like a mouse click. A left click in the blocked area does not activate the window if there is an inactive window under the click. A tap activates it.

I am surprised that apparently no AHK expert has yet dealt more intensively with all the touchscreen problems, i.e. with the possibilities that AHK could offer here (maybe?).

[swagfag]

for an expert to deal with something, they must:

1. find the problem interesting enough / worthwhile to look into
2. have the ability to test it

A) is already a tall order in and of itself. and now ure chucking B) in...

it seems to me ull either have to donate some touchscreen laptops or become an expert urself

[MrDodel]

Disable it entirely, and see if the ghost presses still happen:

To disable the touch screen:

Open Start.
Search for Device Manager and click the top result to open the app.
Expand the Human Interface Devices branch.
Right-click the HID-compliant touch screen item, and select the Disable device option.

Good luck!

[RussF]

If you don't need touch screen functionality, then by all means, disable the device as @MrDodel suggested. That's the easiest method.

I had a similar problem with one of my laptops, but needed the functionality. The overwhelming majority of laptop (not tablet) touch screens are in two pieces - the LCD display screen and the touch screen digitizer which sits on top of the LCD screen. Three days and about $50 USD later (about 5 years ago), I had a new digitizer. There are plenty of how-to videos online for screen replacement.

That's my "expert" opinion.

Russ

[newbieforever]

@MrDodel, @RussF: If the touch screen is disabled, there are no ghost taps. But I need the touch screen functionality too.


@swagfaf: I made the bold assumption that the fact of 100 million Windows tablets and convertibles sold in the last few years might be a reason to wonder why there are no solutions like "How to detect touchscreen touches" or "How to remap touchscreen touches" in this forum. That I was wrong, is proven by your snappy reply.

EDIT: But wasn't this
viewtopic.php?t=3774#p21106
an approach to this problem several years ago that could be useful and should be pursued? Unfortunately, I myself have too little AHK knowledge to understand the whole thing.

[MrDodel]

I'm leaning towards hardware, you could try "massaging" the affected area, quite like what you could do with stuck LCD pixels, outside that it's a replacement screen/digitizer.

If you need the functionality of touch, I see only one solution.

Good Luck!