Is there a way in AutoHotkey to know between a mouse click and touchscreen click

Question

I have two monitors one of them is a touchscreen. do somebody now a simple code in autohotkey. that you received a value, between a mouse click and a touchscreen click

I use for example Photoshop application on my main monitor 1

And I have a virtual keyboard with my (favorite keystroke combos) on my touchscreen monitor 2

I want if I do with my left hand a touchscreen click on my virtual keyboard monitor 2.

That the mouse pointer stays on my main monitor 1

So that I can proceed with PhotoShop without interrupting to move my mouse pointer back to my main monitor 1.

This is the script so far a alternative idea.

::^d ;push ctrl + d to disable the mouse pointer movement
BlockInput MouseMove 
return

::^e ;push ctrl + e to enable the mouse pointer movement
BlockInput MouseMoveOff 
return

Answer 1

Distinguishing between input devices is not a trivial task with AHK. It can be done, but it's quite complicated.
If you'd be okay with interpreting every click on the touchscreen as a touch click then you could do something like this:

When the mouse moves on the normal screen  
    store it's position in a variable.

When a left click is executed on the touch screen do the click  
    move the mouse back to the last know position on the normal monitor.

You'll need:

SysGet
RegisterCallback or SetTimer+MouseGetPos
Hotkeys

Answer 2

I do not have a second monitor to fully test this code but I have tested on my main monitor which is a touchscreen. This code should do the trick :)

; Screen pixel split between monitors
; You should change this values according to the desired region of interest
screen_split_min := 0
screen_split_max := 200
; To get absolute monitor coordinates
CoordMode, Mouse, Screen

MouseGetPos, pre_mx, pre_my
While 1
{
  MouseGetPos, tmp_mx, tmp_my
  If tmp_mx > %screen_split_max%
  {
    pre_mx := tmp_mx
    pre_my := tmp_my
  }
}

~LButton::
  MouseGetPos, mx, my
  If mx <= %screen_split_max% and mx >= %screen_split_min%
  {
    MouseMove, pre_mx, pre_my, 0
  }
return

HTH ;)